{"title":"Main Caps","description":null,"products":[{"product_id":"sbc-billet-front-main-cap","title":"Howards Cams Inc SBC Billet Front Main Cap - 2-Bolt, Billet Steel, 350 Journal","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Howards Cams Inc\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHowards Cams Inc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Howards Cams Inc lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eStrengthen Your Small Block Chevy with Howards Cams Billet Front Main Cap\u003c\/h2\u003e\u003cp\u003eFortify the foundation of your Small Block Chevy (SBC) engine with the Howards Cams Inc Billet Front Main Cap. Designed for high-performance and high-stress applications, this main cap provides superior strength and rigidity compared to factory cast units. Essential for engines producing significant horsepower and torque, it helps maintain crankshaft stability and alignment, preventing cap walk and ensuring reliable operation under extreme loads.\u003c\/p\u003e\u003ch3\u003ePrecision Engineered Billet Steel Construction\u003c\/h3\u003e\u003cp\u003eCrafted from premium billet steel, this front main cap offers exceptional durability and resistance to deflection. Its 2-bolt design with straight bolts ensures a secure fit and optimal clamping force. Specifically engineered for 350 journal Small Block Chevy engines, it provides a precise fit and enhances the overall integrity of your engine's bottom end. This single main cap is a critical upgrade for anyone building a robust and long-lasting SBC.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Advantages:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Small Block Chevy (SBC) engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePosition:\u003c\/b\u003e Front Main Cap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBolt Configuration:\u003c\/b\u003e 2-Bolt with Straight Bolts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e High-Strength Billet Steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eJournal Size:\u003c\/b\u003e Designed for 350 Journal crankshafts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced Durability:\u003c\/b\u003e Prevents cap walk and improves crankshaft stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Machined:\u003c\/b\u003e Ensures accurate fitment and superior performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eInvest in the Howards Cams Inc SBC Billet Front Main Cap for unmatched bottom-end strength and peace of mind in your high-performance build.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Howards Cams Inc products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams Inc. SBC Hydraulic Flat Tappet Camshaft — Lift 0.508\/0.530, Duration 243\/253,\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-cam-sbc-max-oval\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Hydraulic Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-roller-cam-sbc-max-marine\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Marine Hydraulic Roller Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams 110255-10 Hydraulic Roller Camshaft — High Performance SBC 2200-5800 RPM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/solid-cam-sbc-max-oval-w-small-base-circle\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Solid Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Howards Cams Inc SBC Billet Front Main Cap - 2-Bolt, Billet Steel, 350 Journal\",\"description\":\"Reinforce your Small Block Chevy with the Howards Cams Inc billet steel front main cap. 2-bolt design, 350 journal, straight bolts for superior strength.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Howards Cams Inc\"},\"mpn\":\"H350F\",\"url\":\"https:\/\/ggcracing.com\/products\/sbc-billet-front-main-cap\",\"offers\":{\"@type\":\"Offer\",\"price\":\"102.50\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/sbc-billet-front-main-cap\",\"sku\":\"BKRV_H350F\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Howards Cams Inc\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Howards+Cams+Inc\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Howards Cams Inc SBC Billet Front Main Cap - 2-Bolt, Billet Steel, 350 Journal\",\"item\":\"https:\/\/ggcracing.com\/products\/sbc-billet-front-main-cap\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Howards Cams Inc SBC Billet Front Main Cap - 2-Bolt, Billet Steel, 350 Journal fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Howards Cams Inc?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Howards Cams Inc SBC Billet Front Main Cap - 2-Bolt, Billet Steel, 350 Journal?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Howards Cams Inc","offers":[{"title":"Default Title","offer_id":40880959029332,"sku":"BKRV_H350F","price":93.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HRCH350F.jpg?v=1714529978"},{"product_id":"sbc-billet-main-caps-4-bolt-replacement","title":"Howards Cams SBC Billet Main Caps — 4-Bolt Replacement Center Caps for 350 Journal","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Howards Cams Inc\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHowards Cams Inc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Howards Cams Inc lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/b2LzSz9W1Sk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eStrengthen Your Small Block Chevy with Howards Cams Billet 4-Bolt Main Caps\u003c\/h2\u003e\u003cp\u003eFor serious Small Block Chevy builders pushing the limits of horsepower, the Howards Cams SBC Billet Main Caps offer an indispensable upgrade. This set of 4-bolt replacement center main caps is engineered to dramatically increase the rigidity of your engine block, providing unparalleled support for the crankshaft. Essential for high-RPM, high-output engines, these billet caps prevent main cap deflection and ensure consistent bearing clearances, even under the most extreme operating conditions.\u003c\/p\u003e\u003ch3\u003eSuperior Rigidity \u0026amp; Crankshaft Stability\u003c\/h3\u003e\u003cp\u003eConstructed from premium billet steel, these Howards Cams main caps are a significant improvement over factory cast components. The robust 4-bolt design, combined with the inherent strength of billet material, creates a rock-solid foundation for your crankshaft, crucial for maintaining engine integrity in performance applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Steel Construction:\u003c\/strong\u003e Provides vastly superior strength and resistance to flex compared to OEM cast main caps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Bolt Design:\u003c\/strong\u003e Enhances clamping force and block rigidity, ideal for high-horsepower and high-RPM engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Caps:\u003c\/strong\u003e Specifically designed to replace the weaker factory center main caps, where stress is often highest.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight Bolts:\u003c\/strong\u003e Ensures precise alignment and optimal load distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e350 Journal Compatibility:\u003c\/strong\u003e Perfect fit for Small Block Chevy engines with 350 main journals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication \u0026amp; Performance Benefits\u003c\/h3\u003e\u003cp\u003eThese Howards Cams Billet 4-Bolt Main Caps are a must-have for any Small Block Chevy engine destined for racing, forced induction, or extreme naturally aspirated builds. By reinforcing the critical center section of the engine block, they help prevent crankshaft distortion and main bearing wear, contributing to both enhanced performance and extended engine life. Invest in the foundation of your power with these top-tier main caps.\u003c\/p\u003e\u003ch3\u003eWhy Choose Howards Cams for Your SBC Build?\u003c\/h3\u003e\u003cp\u003eHowards Cams is synonymous with high-performance engine components, and these SBC Billet Main Caps exemplify that reputation. Designed for durability and precision, they are a vital upgrade for anyone serious about maximizing their Small Block Chevy's potential. Don't compromise on engine block integrity; choose Howards Cams for the strength and reliability your build demands. Find all your performance engine needs at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Howards Cams Inc products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams Inc. SBC Hydraulic Flat Tappet Camshaft — Lift 0.508\/0.530, Duration 243\/253,\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-cam-sbc-max-oval\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Hydraulic Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-roller-cam-sbc-max-marine\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Marine Hydraulic Roller Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams 110255-10 Hydraulic Roller Camshaft — High Performance SBC 2200-5800 RPM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/solid-cam-sbc-max-oval-w-small-base-circle\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Solid Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Howards Cams SBC Billet Main Caps \\u2014 4-Bolt Replacement Center Caps for 350 Journal\",\"description\":\"Upgrade your Small Block Chevy with Howards Cams Billet 4-Bolt Main Caps. Enhance block rigidity and crankshaft support for extreme power. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Howards Cams Inc\"},\"mpn\":\"H350R\",\"url\":\"https:\/\/ggcracing.com\/products\/sbc-billet-main-caps-4-bolt-replacement\",\"offers\":{\"@type\":\"Offer\",\"price\":\"303.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/sbc-billet-main-caps-4-bolt-replacement\",\"sku\":\"BKRV_H350R\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Howards Cams Inc\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Howards+Cams+Inc\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Howards Cams SBC Billet Main Caps \\u2014 4-Bolt Replacement Center Caps for 350 Journal\",\"item\":\"https:\/\/ggcracing.com\/products\/sbc-billet-main-caps-4-bolt-replacement\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Howards Cams SBC Billet Main Caps \\u2014 4-Bolt Replacement Center Caps for 350 Journ fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Howards Cams Inc?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Howards Cams SBC Billet Main Caps \\u2014 4-Bolt Replacement Center Caps for 350 Journ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Howards Cams Inc","offers":[{"title":"Default Title","offer_id":40880959619156,"sku":"BKRV_H350R","price":278.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HRCH350R.jpg?v=1714529987"},{"product_id":"rear-main-cap-sbc-350-w-wet-sump-oil-system","title":"Howards Cams Rear Main Cap — SBC 350 Billet Steel 2-Bolt Wet Sump","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Howards Cams Inc\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHowards Cams Inc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Howards Cams Inc lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/liCsFBJ5u-4\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eEngine Reinforcement with Howards Cams Billet Main Caps\u003c\/h2\u003e\u003cp\u003eBuild a stronger, more reliable Small Block Chevy engine with the Howards Cams Rear Main Cap. Designed specifically for the 350 journal, this billet steel cap is a critical upgrade for any performance engine build. Whether you are putting together a street-strip machine or a dedicated race engine, replacing your stock main caps with high-strength billet steel is essential for preventing block distortion and main bearing failure under high-RPM stress.\u003c\/p\u003e\u003ch3\u003ePrecision Engineering for SBC 350\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Quality:\u003c\/strong\u003e CNC-machined from high-strength billet steel for maximum rigidity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Designed for 350 journal Small Block Chevy blocks with a 2-bolt configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Optimized for wet sump oiling systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Straight bolt design ensures a secure, precise fit to maintain proper main bearing clearance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe rigidity of this billet main cap significantly improves the structural integrity of your engine's bottom end. By minimizing cap walk and vibration, you can push your engine harder and with greater confidence. This component is a must-have for builders aiming for increased horsepower and longevity. Every detail matters when building a high-performance engine, and Howards Cams provides the quality you need for a winning build. Find this and other engine internals at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Howards Cams Inc products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams Inc. SBC Hydraulic Flat Tappet Camshaft — Lift 0.508\/0.530, Duration 243\/253,\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-cam-sbc-max-oval\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Hydraulic Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-roller-cam-sbc-max-marine\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Marine Hydraulic Roller Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams 110255-10 Hydraulic Roller Camshaft — High Performance SBC 2200-5800 RPM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/solid-cam-sbc-max-oval-w-small-base-circle\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Solid Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Howards Cams Rear Main Cap \\u2014 SBC 350 Billet Steel 2-Bolt Wet Sump\",\"description\":\"Strengthen your Small Block Chevy engine with the Howards Cams Billet Steel Rear Main Cap. Designed for 350 journals and wet sump systems. Shop GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Howards Cams Inc\"},\"mpn\":\"H350RWS\",\"url\":\"https:\/\/ggcracing.com\/products\/rear-main-cap-sbc-350-w-wet-sump-oil-system\",\"offers\":{\"@type\":\"Offer\",\"price\":\"292.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/rear-main-cap-sbc-350-w-wet-sump-oil-system\",\"sku\":\"BKRV_H350RWS\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Howards Cams Inc\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Howards+Cams+Inc\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Howards Cams Rear Main Cap \\u2014 SBC 350 Billet Steel 2-Bolt Wet Sump\",\"item\":\"https:\/\/ggcracing.com\/products\/rear-main-cap-sbc-350-w-wet-sump-oil-system\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Howards Cams Rear Main Cap \\u2014 SBC 350 Billet Steel 2-Bolt Wet Sump fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Howards Cams Inc?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Howards Cams Rear Main Cap \\u2014 SBC 350 Billet Steel 2-Bolt Wet Sump?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Howards Cams Inc","offers":[{"title":"Default Title","offer_id":40880963911764,"sku":"BKRV_H350RWS","price":276.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HRCH350RWS.jpg?v=1714530071"},{"product_id":"sbc-billet-splayed-main-caps-2-bolt-to-4-bolt","title":"Howards Cams SBC Billet Splayed Main Caps — 2-Bolt to 4-Bolt Conversion Set","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Howards Cams Inc\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHowards Cams Inc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Howards Cams Inc lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/Hn7OeP3kRsA\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eTransform Your SBC with Howards Cams Billet Splayed Main Caps (2-Bolt to 4-Bolt Conversion)\u003c\/h2\u003e\u003cp\u003eFor serious Small Block Chevy builders aiming for extreme power and unwavering reliability, upgrading from a 2-bolt to a 4-bolt main cap configuration is a critical step. The \u003cstrong\u003eHowards Cams SBC Billet Splayed Main Caps\u003c\/strong\u003e provide the ultimate foundation for your high-performance engine, offering a robust 2-bolt to 4-bolt conversion solution. This set of three billet steel center main caps dramatically increases the rigidity of your engine block, ensuring superior crankshaft support under the most demanding conditions. Experience enhanced durability and reduced flex, essential for engines pushing the limits of horsepower and RPM.\u003c\/p\u003e\u003ch3\u003eUnrivaled Strength and Stability for High-Output SBCs\u003c\/h3\u003e\u003cp\u003eThis specialized set of billet splayed main caps delivers a host of performance benefits:\u003c\/p\u003e\u003cul\u003e    \u003cli\u003e\n\u003cb\u003e2-Bolt to 4-Bolt Conversion:\u003c\/b\u003e Effectively upgrades a factory 2-bolt main block to the strength and stability of a 4-bolt design.\u003c\/li\u003e    \u003cli\u003e\n\u003cb\u003eSplayed Bolt Design:\u003c\/b\u003e The splayed outer bolts anchor into stronger sections of the block, significantly improving main cap retention and block integrity.\u003c\/li\u003e    \u003cli\u003e\n\u003cb\u003eBillet Steel Construction:\u003c\/b\u003e Precision-machined from premium billet steel, offering vastly superior strength and resistance to cap walk compared to OEM cast iron.\u003c\/li\u003e    \u003cli\u003e\n\u003cb\u003eOptimized for SBC 350:\u003c\/b\u003e Designed for Small Block Chevy engines with a 350 journal, ensuring precise fitment and optimal bearing alignment.\u003c\/li\u003e    \u003cli\u003e\n\u003cb\u003eEnhanced Crankshaft Stability:\u003c\/b\u003e Minimizes crankshaft deflection and vibration, crucial for preventing bearing failure and extending engine life in high-stress applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications \u0026amp; Installation Notes\u003c\/h3\u003e\u003cp\u003eThis set includes three billet steel center main caps, featuring a splayed 4-bolt design for maximum block reinforcement. While designed for a 350 journal Small Block Chevy, installation typically requires machining of the main cap saddles and line boring to ensure perfect alignment and proper bearing clearances. This process is vital for achieving the full benefits of the splayed design and transforming your engine's bottom end into a powerhouse foundation. Each cap is engineered for extreme precision, reflecting Howards Cams' commitment to quality.\u003c\/p\u003e\u003ch3\u003eWhy Choose Howards Cams for Your Performance Build?\u003c\/h3\u003e\u003cp\u003eHowards Cams is a trusted name in the performance aftermarket, known for engineering components that withstand the rigors of racing and high-performance street use. Their SBC Billet Splayed Main Caps are a testament to this legacy, providing a critical upgrade for anyone serious about pushing their Small Block Chevy to its limits. For unparalleled strength, stability, and peace of mind in your engine build, choose Howards Cams. Trust GGCRACING for all your high-performance engine component needs.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Howards Cams Inc products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams Inc. SBC Hydraulic Flat Tappet Camshaft — Lift 0.508\/0.530, Duration 243\/253,\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-cam-sbc-max-oval\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Hydraulic Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-roller-cam-sbc-max-marine\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Marine Hydraulic Roller Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams 110255-10 Hydraulic Roller Camshaft — High Performance SBC 2200-5800 RPM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/solid-cam-sbc-max-oval-w-small-base-circle\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Solid Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Howards Cams SBC Billet Splayed Main Caps \\u2014 2-Bolt to 4-Bolt Conversion Set\",\"description\":\"Convert your SBC 2-bolt block to 4-bolt strength with Howards Cams Billet Splayed Main Caps. This set of 3 enhances rigidity. Shop now!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Howards Cams Inc\"},\"mpn\":\"H350S\",\"url\":\"https:\/\/ggcracing.com\/products\/sbc-billet-splayed-main-caps-2-bolt-to-4-bolt\",\"offers\":{\"@type\":\"Offer\",\"price\":\"318.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/sbc-billet-splayed-main-caps-2-bolt-to-4-bolt\",\"sku\":\"BKRV_H350S\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Howards Cams Inc\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Howards+Cams+Inc\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Howards Cams SBC Billet Splayed Main Caps \\u2014 2-Bolt to 4-Bolt Conversion Set\",\"item\":\"https:\/\/ggcracing.com\/products\/sbc-billet-splayed-main-caps-2-bolt-to-4-bolt\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Howards Cams SBC Billet Splayed Main Caps \\u2014 2-Bolt to 4-Bolt Conversion Set fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Howards Cams Inc?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Howards Cams SBC Billet Splayed Main Caps \\u2014 2-Bolt to 4-Bolt Conversion Set?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Howards Cams Inc","offers":[{"title":"Default Title","offer_id":40880963944532,"sku":"BKRV_H350S","price":278.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HRCH350S.jpg?v=1714530079"},{"product_id":"bbc-454-billet-main-caps","title":"Howards Cams BBC 454 Billet Steel 4-Bolt Main Caps — Fits Big Block Chevy Engines","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Howards Cams Inc\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHowards Cams Inc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Howards Cams Inc lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/69k9g0Dblsk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Billet Main Caps for BBC 454\u003c\/h2\u003e\u003cp\u003eWhen you are pushing your Big Block Chevy to the limit, block integrity is paramount. These Howards Cams Billet Main Caps are engineered to provide maximum stability for your crankshaft, preventing cap walk and ensuring consistent bearing clearances under extreme load. Precision-machined from high-strength billet steel, these caps are the ultimate upgrade for high-horsepower street and race engines.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium billet steel for superior structural rigidity compared to OEM cast caps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 4-bolt design for enhanced clamping force on center journals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Specifically designed for 454 journal Big Block Chevy engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Straight bolt pattern for precise alignment and ease of installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Sold as a complete set of 3 center caps.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are building a drag strip monster or a high-torque marine engine, these billet caps offer the peace of mind that your bottom end will stay secure. Proper machining and line honing are required during installation to ensure optimal bearing crush and oil clearance. Trust your engine build to the high-quality components available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Howards Cams Inc products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams Inc. SBC Hydraulic Flat Tappet Camshaft — Lift 0.508\/0.530, Duration 243\/253,\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-cam-sbc-max-oval\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Hydraulic Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-roller-cam-sbc-max-marine\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Marine Hydraulic Roller Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams 110255-10 Hydraulic Roller Camshaft — High Performance SBC 2200-5800 RPM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/solid-cam-sbc-max-oval-w-small-base-circle\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Solid Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Howards Cams BBC 454 Billet Steel 4-Bolt Main Caps \\u2014 Fits Big Block Chevy Engines\",\"description\":\"Upgrade your engine block with Howards Cams BBC 454 Billet Main Caps. High-strength 4-bolt design for superior durability. Shop performance parts at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Howards Cams Inc\"},\"mpn\":\"H454\",\"url\":\"https:\/\/ggcracing.com\/products\/bbc-454-billet-main-caps\",\"offers\":{\"@type\":\"Offer\",\"price\":\"319.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/bbc-454-billet-main-caps\",\"sku\":\"BKRV_H454\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Howards Cams Inc\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Howards+Cams+Inc\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Howards Cams BBC 454 Billet Steel 4-Bolt Main Caps \\u2014 Fits Big Block Chevy Engines\",\"item\":\"https:\/\/ggcracing.com\/products\/bbc-454-billet-main-caps\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Howards Cams BBC 454 Billet Steel 4-Bolt Main Caps \\u2014 Fits Big Block Chevy Engine fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Howards Cams Inc?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Howards Cams BBC 454 Billet Steel 4-Bolt Main Caps \\u2014 Fits Big Block Chevy Engine?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Howards Cams Inc","offers":[{"title":"Default Title","offer_id":40880965648468,"sku":"BKRV_H454","price":292.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HRCH454.jpg?v=1714530106"},{"product_id":"sb-400-main-caps","title":"Milodon Small Block Chevy 400 Journal Rear Main Cap - 4-Bolt Splayed Ductile Iron","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Milodon\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eMilodon engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Milodon lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/69k9g0Dblsk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eReinforce Your SBC 400 with Milodon's 4-Bolt Splayed Ductile Iron Rear Main Cap\u003c\/h2\u003e\u003cp\u003eFor serious Small Block Chevy 400 engine builders, maintaining crankshaft stability under extreme loads is paramount. The Milodon Small Block Chevy 400 Journal Rear Main Cap is a crucial upgrade, designed to significantly enhance the rigidity and durability of your engine's bottom end. This robust 4-bolt splayed main cap is engineered to prevent cap walk and ensure consistent crankshaft alignment, especially in high-horsepower and high-RPM applications.\u003c\/p\u003e\u003ch3\u003eSuperior Strength and Stability for Performance Engines\u003c\/h3\u003e\u003cp\u003eCrafted from high-grade ductile iron, this Milodon main cap offers superior strength compared to factory cast iron components. The innovative 4-bolt splayed design, particularly for the rear position, provides exceptional clamping force and spreads the load across a wider area of the block. This design dramatically reduces flex and distortion, which are common issues in modified engines, thereby extending the life of your crankshaft and bearings.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFitment:\u003c\/b\u003e Specifically for Small Block Chevy engines with a 400 main journal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePosition:\u003c\/b\u003e Designed for the rear main cap location.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBolt Configuration:\u003c\/b\u003e Features a 4-bolt splayed design for maximum block reinforcement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Constructed from high-strength ductile iron for superior durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced Stability:\u003c\/b\u003e Prevents main cap walk and improves crankshaft support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit Includes:\u003c\/b\u003e Essential components for a secure installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Milodon Main Caps are Essential for Your SBC 400\u003c\/h3\u003e\u003cp\u003eMilodon has a long-standing reputation for producing top-tier engine components that meet the rigorous demands of racing and high-performance street applications. This 4-bolt splayed ductile iron rear main cap for the SBC 400 is a testament to their engineering excellence. By upgrading to a Milodon main cap, you are investing in the longevity and reliability of your engine, giving you the confidence to push your vehicle to its limits. Build a bulletproof bottom end with Milodon components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Milodon products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbm-angled-main-cap-set-318-340\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Splayed 4-Bolt Angled Main Cap Set — Fits Mopar 318\/340 Small Block\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sb-chevy-gear-drive\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon 3-Gear Billet Steel Timing Gear Drive — Fits Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/thrust-button\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Camshaft Thrust Button - Plastic - Fits Milodon Gear Drive Chevy\/Mopar\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/laminated-shim-washers-2-gear-drive-parts\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Laminated Shim Washers 12558 Gear Drive Timing Components — Universal Performance \u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bb-chevy-gear-drive-w-fuel-pump-drive\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon BB Chevy Timing Gear Drive 3-Gear Billet Steel with Fuel Pump Drive — Fits Big Blo\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Milodon Small Block Chevy 400 Journal Rear Main Cap - 4-Bolt Splayed Ductile Iron\",\"description\":\"Reinforce your Small Block Chevy 400 engine with Milodon's durable ductile iron 4-bolt splayed rear main cap. Essential for high-performance builds. Shop main caps!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Milodon\"},\"mpn\":\"11180\",\"url\":\"https:\/\/ggcracing.com\/products\/sb-400-main-caps\",\"offers\":{\"@type\":\"Offer\",\"price\":\"387.58\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/sb-400-main-caps\",\"sku\":\"BCBV_11180\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Milodon\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Milodon\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Milodon Small Block Chevy 400 Journal Rear Main Cap - 4-Bolt Splayed Ductile Iron\",\"item\":\"https:\/\/ggcracing.com\/products\/sb-400-main-caps\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Milodon Small Block Chevy 400 Journal Rear Main Cap - 4-Bolt Splayed Ductile Iro fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Milodon?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Milodon Small Block Chevy 400 Journal Rear Main Cap - 4-Bolt Splayed Ductile Iro?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Milodon","offers":[{"title":"Default Title","offer_id":40881663475796,"sku":"BCBV_11180","price":389.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/MIL11180.jpg?v=1714538162"},{"product_id":"sbm-angled-main-cap-set-318-340","title":"Milodon Splayed 4-Bolt Angled Main Cap Set — Fits Mopar 318\/340 Small Block","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Milodon\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eMilodon engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Milodon lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/69k9g0Dblsk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaximize Bottom-End Stability\u003c\/h2\u003e\u003cp\u003eThe Mopar 318 and 340 small block engines are known for their power potential, but they require a robust bottom end to handle high-performance upgrades. Milodon Splayed 4-Bolt Main Caps are the ultimate solution for preventing main cap walk and ensuring crankshaft stability under extreme load. By converting your block to a splayed 4-bolt configuration, you significantly increase the structural rigidity of the main bearing saddles.\u003c\/p\u003e\u003ch3\u003eEngineered for Durability\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuctile Iron Construction:\u003c\/strong\u003e Offers superior strength and vibration dampening over standard cast iron.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplayed Bolt Design:\u003c\/strong\u003e Anchors the caps into the strongest part of the block webbing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Fit:\u003c\/strong\u003e Designed specifically for Mopar 318\/340 blocks for a secure, professional installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Bolt Conversion:\u003c\/strong\u003e Provides the necessary support for high-RPM and high-torque racing applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eProper main cap support is critical for engine longevity. These Milodon caps are designed to be line-bored to your specific block, ensuring a perfect fit and ideal bearing clearance. Whether you are building a high-compression street engine or a dedicated drag racing powerplant, these main caps are an essential upgrade for any serious Mopar enthusiast. Invest in the foundation of your engine with high-quality components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Milodon products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sb-400-main-caps\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Small Block Chevy 400 Journal Rear Main Cap - 4-Bolt Splayed Ductile Iron\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sb-chevy-gear-drive\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon 3-Gear Billet Steel Timing Gear Drive — Fits Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/thrust-button\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Camshaft Thrust Button - Plastic - Fits Milodon Gear Drive Chevy\/Mopar\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/laminated-shim-washers-2-gear-drive-parts\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Laminated Shim Washers 12558 Gear Drive Timing Components — Universal Performance \u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/bb-chevy-gear-drive-w-fuel-pump-drive\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon BB Chevy Timing Gear Drive 3-Gear Billet Steel with Fuel Pump Drive — Fits Big Blo\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Milodon Splayed 4-Bolt Angled Main Cap Set \\u2014 Fits Mopar 318\/340 Small Block\",\"description\":\"Strengthen your Mopar 318\/340 block with Milodon Splayed 4-Bolt Main Caps. Ductile iron construction for maximum bottom-end stability. Shop at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Milodon\"},\"mpn\":\"11300\",\"url\":\"https:\/\/ggcracing.com\/products\/sbm-angled-main-cap-set-318-340\",\"offers\":{\"@type\":\"Offer\",\"price\":\"419.95\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/sbm-angled-main-cap-set-318-340\",\"sku\":\"BCBV_11300\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Lighting\",\"item\":\"https:\/\/ggcracing.com\/collections\/lighting\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Milodon\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Milodon\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Milodon Splayed 4-Bolt Angled Main Cap Set \\u2014 Fits Mopar 318\/340 Small Block\",\"item\":\"https:\/\/ggcracing.com\/products\/sbm-angled-main-cap-set-318-340\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Milodon Splayed 4-Bolt Angled Main Cap Set \\u2014 Fits Mopar 318\/340 Small Block fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Milodon?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Milodon Splayed 4-Bolt Angled Main Cap Set \\u2014 Fits Mopar 318\/340 Small Block?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most plug-and-play LED upgrades take 15-30 minutes per side. Full retrofits or harness installs may require additional wiring.\"}}]}\u003c\/script\u003e","brand":"Milodon","offers":[{"title":"Default Title","offer_id":40881663836244,"sku":"BCBV_11300","price":459.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/MIL11300.jpg?v=1714538173"},{"product_id":"howards-cams-incsupport-strap-sbc-350-front-main-cap","title":"Howards Cams SBC 350 Front Main Cap Support Strap — Engine Block Reinforcement","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Howards Cams Inc\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHowards Cams Inc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Howards Cams Inc lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/P-UR9c684Kg\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eStrengthen Your Engine Block\u003c\/h2\u003e\u003cp\u003eThe Howards Cams Front Main Cap Support Strap is a critical component for any high-performance Small Block Chevy (SBC) 350 build. Designed to provide additional structural support to the front main cap, this steel strap helps prevent main cap walk and block fatigue under high-load conditions. This is an essential modification for engines pushing higher horsepower levels than the factory block was originally intended to handle.\u003c\/p\u003e\u003ch3\u003eTechnical Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eApplication: Small Block Chevy 350\u003c\/li\u003e\n\u003cli\u003ePosition: Front Main Cap\u003c\/li\u003e\n\u003cli\u003eMaterial: Durable Steel\u003c\/li\u003e\n\u003cli\u003eCompatibility: Wet Sump Systems\u003c\/li\u003e\n\u003cli\u003eNote: Requires professional machining for installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBy tying the main caps together, this support strap significantly increases the rigidity of the bottom end, which is vital for maintaining proper bearing clearances and crankshaft alignment. This reinforcement is especially important in performance applications where increased cylinder pressure and higher RPMs put extra stress on the engine block. Please note that this part requires professional machining to ensure a perfect fit and proper clearance. Adding this support strap is a cost-effective way to improve the reliability of your engine and prevent catastrophic failure during high-performance use. When you are building for power, do not overlook the importance of bottom-end stability. Rely on GGCRACING for high-quality engine components and the support you need to build a stronger, more reliable engine.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Howards Cams Inc products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams Inc. SBC Hydraulic Flat Tappet Camshaft — Lift 0.508\/0.530, Duration 243\/253,\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-cam-sbc-max-oval\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Hydraulic Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-roller-cam-sbc-max-marine\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Marine Hydraulic Roller Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams 110255-10 Hydraulic Roller Camshaft — High Performance SBC 2200-5800 RPM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/solid-cam-sbc-max-oval-w-small-base-circle\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Solid Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Howards Cams SBC 350 Front Main Cap Support Strap \\u2014 Engine Block Reinforcement\",\"description\":\"Reinforce your Small Block Chevy 350 with the Howards Cams Front Main Cap Support Strap. Essential for high-performance builds. Shop now at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Howards Cams Inc\"},\"mpn\":\"H350FS\",\"url\":\"https:\/\/ggcracing.com\/products\/howards-cams-incsupport-strap-sbc-350-front-main-cap\",\"offers\":{\"@type\":\"Offer\",\"price\":\"27.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/howards-cams-incsupport-strap-sbc-350-front-main-cap\",\"sku\":\"BKRV_H350FS\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Howards Cams Inc\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Howards+Cams+Inc\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Howards Cams SBC 350 Front Main Cap Support Strap \\u2014 Engine Block Reinforcement\",\"item\":\"https:\/\/ggcracing.com\/products\/howards-cams-incsupport-strap-sbc-350-front-main-cap\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Howards Cams SBC 350 Front Main Cap Support Strap \\u2014 Engine Block Reinforcement fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Howards Cams Inc?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Howards Cams SBC 350 Front Main Cap Support Strap \\u2014 Engine Block Reinforcement?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Howards Cams Inc","offers":[{"title":"Default Title","offer_id":41066228154452,"sku":"BKRV_H350FS","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HRCH350FS.jpg?v=1716688803"},{"product_id":"prwbillet-main-caps-67-86-chevy-350-4-bolt-repl","title":"PRW Billet Main Caps 4-Bolt Straight Bolt — Fits 67-86 Chevy 350","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout PRW\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/Cwqh5mU2vWE\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Strength Billet Main Caps for Small Block Chevy\u003c\/h2\u003e\u003cp\u003eReinforce your engine's bottom end with PRW Billet Main Caps, specifically designed for 1967-1986 Small Block Chevy 350 engines. Factory main caps are often the weak link in high-horsepower builds; these billet steel replacements offer significantly higher tensile strength and rigidity, preventing main cap walk and ensuring your crankshaft remains properly aligned under extreme stress.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMaterial: High-Strength Steel\u003c\/li\u003e\n\u003cli\u003eConfiguration: 4-Bolt Main\u003c\/li\u003e\n\u003cli\u003eBolt Pattern: Straight Bolts\u003c\/li\u003e\n\u003cli\u003eJournal Size: 350 Journal\u003c\/li\u003e\n\u003cli\u003eQuantity: Set of 3 (Center Caps)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese billet caps are precision-machined to provide a superior fit, minimizing the need for extensive line honing while maximizing structural integrity. The straight-bolt design is ideal for standard high-performance applications where increased clamping force is required to keep the crankshaft secure. By upgrading to these billet components, you significantly reduce the risk of catastrophic engine failure during high-RPM sprints or heavy-load conditions. These caps are essential for any serious engine builder looking to push their Small Block Chevy to the next level. For professional-grade engine components and expert advice, look no further than GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular PRW products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwgm-oe-ls-rocker-trunnion-upgrade-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW GM LS Trunnion Upgrade Kit Chromoly Rocker Arm Set — Fits 1997-2015 GM LS-Series Engin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwtrunnion-installation-tool-kit-gm-ls\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Trunnion Installation Tool Kit — Fits GM LS-Series Rocker Arm Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwfulcrum-upgrade-kit-gm-ls-series-16pk\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Fulcrum Upgrade Kit Silicon Bronze Bushing — Fits GM LS-Series Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-65-69-sbf\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1965-1969 Small Block Ford\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-70-87-sbf-302-351w\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1970-1987 SBF 302\/351W\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"PRW Billet Main Caps 4-Bolt Straight Bolt \\u2014 Fits 67-86 Chevy 350\",\"description\":\"Strengthen your Chevy 350 engine with PRW Billet Main Caps. 4-bolt design for 1967-86 Small Block Chevy. Order your set at GGCRACING today.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PRW\"},\"mpn\":\"1735001\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-67-86-chevy-350-4-bolt-repl\",\"offers\":{\"@type\":\"Offer\",\"price\":\"222.42\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-67-86-chevy-350-4-bolt-repl\",\"sku\":\"FMJX_1735001\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PRW\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=PRW\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"PRW Billet Main Caps 4-Bolt Straight Bolt \\u2014 Fits 67-86 Chevy 350\",\"item\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-67-86-chevy-350-4-bolt-repl\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the PRW Billet Main Caps 4-Bolt Straight Bolt \\u2014 Fits 67-86 Chevy 350 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for PRW?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the PRW Billet Main Caps 4-Bolt Straight Bolt \\u2014 Fits 67-86 Chevy 350?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"PRW","offers":[{"title":"Default Title","offer_id":41324528435284,"sku":"FMJX_1735001","price":222.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PQX1735001.jpg?v=1718465001"},{"product_id":"prwbillet-main-caps-67-86-chevy-350-2-to-4-bolt","title":"PRW Billet Main Caps 2 to 4-Bolt Conversion — Fits 67-86 Chevy 350","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout PRW\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/vKlkAt6cuUk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eUpgrade to 4-Bolt Main Strength for Chevy 350\u003c\/h2\u003e\u003cp\u003eTransform your 2-bolt main Small Block Chevy 350 into a 4-bolt powerhouse with these PRW Billet Main Caps. Designed for 1967-1986 engine blocks, this conversion kit allows you to add the extra clamping force needed for high-performance and racing applications. By upgrading to these billet steel caps, you gain the structural rigidity required to support increased horsepower and torque without the risk of main cap walk.\u003c\/p\u003e\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eApplication: Small Block Chevy 350\u003c\/li\u003e\n\u003cli\u003eConversion: 2-Bolt to 4-Bolt\u003c\/li\u003e\n\u003cli\u003eMaterial: Billet Steel\u003c\/li\u003e\n\u003cli\u003eBolt Pattern: Straight Bolts\u003c\/li\u003e\n\u003cli\u003eQuantity: Set of 3 (Center Caps)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese caps are precision-engineered to provide a tight, secure fit, ensuring that your crankshaft remains stable even at high RPMs. The use of billet steel offers far superior fatigue resistance compared to cast iron factory caps, making them an essential upgrade for any performance engine build. This set is specifically designed for the center main positions, providing the most critical support where the engine experiences the highest load. Whether you are building a drag car or a high-output street engine, these main caps provide the peace of mind you need. Trust your engine's foundation to the quality parts available at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular PRW products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwgm-oe-ls-rocker-trunnion-upgrade-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW GM LS Trunnion Upgrade Kit Chromoly Rocker Arm Set — Fits 1997-2015 GM LS-Series Engin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwtrunnion-installation-tool-kit-gm-ls\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Trunnion Installation Tool Kit — Fits GM LS-Series Rocker Arm Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwfulcrum-upgrade-kit-gm-ls-series-16pk\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Fulcrum Upgrade Kit Silicon Bronze Bushing — Fits GM LS-Series Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-65-69-sbf\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1965-1969 Small Block Ford\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-70-87-sbf-302-351w\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1970-1987 SBF 302\/351W\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion \\u2014 Fits 67-86 Chevy 350\",\"description\":\"Convert your 2-bolt Chevy 350 to 4-bolt with PRW Billet Main Caps. High-strength steel for 1967-86 engines. Get yours at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PRW\"},\"mpn\":\"1735003\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-67-86-chevy-350-2-to-4-bolt\",\"offers\":{\"@type\":\"Offer\",\"price\":\"207.91\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-67-86-chevy-350-2-to-4-bolt\",\"sku\":\"FMJX_1735003\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PRW\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=PRW\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion \\u2014 Fits 67-86 Chevy 350\",\"item\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-67-86-chevy-350-2-to-4-bolt\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the PRW Billet Main Caps 2 to 4-Bolt Conversion \\u2014 Fits 67-86 Chevy 350 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for PRW?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the PRW Billet Main Caps 2 to 4-Bolt Conversion \\u2014 Fits 67-86 Chevy 350?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"PRW","offers":[{"title":"Default Title","offer_id":41324529188948,"sku":"FMJX_1735003","price":207.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PQX1735003_700bec01-a02c-4d1f-9050-bdfd8ee950d8.jpg?v=1718465009"},{"product_id":"prwbillet-main-caps-70-80-chevy-400-splayed-outer","title":"PRW Billet Main Caps 4-Bolt Splayed Outer — Fits 70-80 Chevy 400","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout PRW\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSplayed Billet Main Caps for Chevy 400 Small Block\u003c\/h2\u003e\u003cp\u003eMaximize the strength of your Chevy 400 Small Block engine with PRW Billet Main Caps featuring a splayed outer bolt design. Designed for 1970-1980 engine blocks, these caps provide the ultimate protection against main cap walk and crankshaft deflection. The splayed bolt configuration angles the outer bolts into the thicker, more stable sections of the engine block, significantly increasing the clamping surface and overall bottom-end integrity.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eApplication: Small Block Chevy 400\u003c\/li\u003e\n\u003cli\u003eConfiguration: 4-Bolt Main\u003c\/li\u003e\n\u003cli\u003eBolt Pattern: Splayed Outer Bolts\u003c\/li\u003e\n\u003cli\u003eJournal Size: 400 Journal\u003c\/li\u003e\n\u003cli\u003eQuantity: Set of 3 (Center Caps)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese billet steel caps are a must-have for high-output engines where standard straight-bolt caps may fail. The precision-machined billet steel offers unmatched durability and thermal stability, ensuring your engine remains reliable under extreme racing conditions. By using splayed bolts, you distribute the stress more evenly across the block, which is critical for the high-displacement Chevy 400. This set is the perfect foundation for any serious performance build, providing the security needed for high-RPM operation and heavy loads. When you need the best in engine block components, look to the selection at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular PRW products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwgm-oe-ls-rocker-trunnion-upgrade-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW GM LS Trunnion Upgrade Kit Chromoly Rocker Arm Set — Fits 1997-2015 GM LS-Series Engin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwtrunnion-installation-tool-kit-gm-ls\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Trunnion Installation Tool Kit — Fits GM LS-Series Rocker Arm Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwfulcrum-upgrade-kit-gm-ls-series-16pk\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Fulcrum Upgrade Kit Silicon Bronze Bushing — Fits GM LS-Series Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-65-69-sbf\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1965-1969 Small Block Ford\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-70-87-sbf-302-351w\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1970-1987 SBF 302\/351W\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"PRW Billet Main Caps 4-Bolt Splayed Outer \\u2014 Fits 70-80 Chevy 400\",\"description\":\"Upgrade your Chevy 400 with PRW Splayed Billet Main Caps. 4-bolt design for 1970-80 engines. Shop now for maximum strength at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PRW\"},\"mpn\":\"1740002\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-70-80-chevy-400-splayed-outer\",\"offers\":{\"@type\":\"Offer\",\"price\":\"207.03\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-70-80-chevy-400-splayed-outer\",\"sku\":\"FMJX_1740002\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PRW\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=PRW\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"PRW Billet Main Caps 4-Bolt Splayed Outer \\u2014 Fits 70-80 Chevy 400\",\"item\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-70-80-chevy-400-splayed-outer\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the PRW Billet Main Caps 4-Bolt Splayed Outer \\u2014 Fits 70-80 Chevy 400 fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for PRW?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the PRW Billet Main Caps 4-Bolt Splayed Outer \\u2014 Fits 70-80 Chevy 400?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"PRW","offers":[{"title":"Default Title","offer_id":41324529582164,"sku":"FMJX_1740002","price":207.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PQX1740002.jpg?v=1718465017"},{"product_id":"prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv","title":"PRW Billet Main Caps 2 to 4-Bolt Conversion Set — Fits Chevy 396-454 Big Block","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout PRW\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/vKlkAt6cuUk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eEnhance Engine Stability with PRW Billet Main Caps\u003c\/h2\u003e\u003cp\u003eWhen pushing your Big Block Chevy 396-454 to the limit, block rigidity is paramount. The PRW Billet Main Caps (1745401) are engineered to transform your standard 2-bolt main setup into a robust 4-bolt configuration. These precision-machined steel caps provide the superior clamping force and structural integrity required for high-horsepower street and strip applications.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Designed specifically for Chevy 396-454 Big Block engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConversion:\u003c\/strong\u003e Converts 2-bolt main blocks to a 4-bolt configuration for increased bottom-end strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-strength billet steel construction for maximum durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Straight bolt pattern for precise alignment and ease of installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Complete set of 4 center caps included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBy upgrading to these billet steel caps, you significantly reduce cap walk and main bearing bore distortion under extreme load. This modification is essential for any serious engine build looking to improve reliability during high-RPM operation. Whether you are building a drag car or a high-performance street machine, these caps offer the peace of mind that comes with professional-grade components. Ensure your rotating assembly stays perfectly aligned and secure with this premium hardware upgrade. Find the best performance engine components at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular PRW products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwgm-oe-ls-rocker-trunnion-upgrade-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW GM LS Trunnion Upgrade Kit Chromoly Rocker Arm Set — Fits 1997-2015 GM LS-Series Engin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwtrunnion-installation-tool-kit-gm-ls\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Trunnion Installation Tool Kit — Fits GM LS-Series Rocker Arm Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwfulcrum-upgrade-kit-gm-ls-series-16pk\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Fulcrum Upgrade Kit Silicon Bronze Bushing — Fits GM LS-Series Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-65-69-sbf\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1965-1969 Small Block Ford\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-70-87-sbf-302-351w\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1970-1987 SBF 302\/351W\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block\",\"description\":\"Upgrade your Chevy 396-454 engine with PRW Billet 4-Bolt Main Caps. Improve block stability and durability. Shop this high-performance conversion kit today!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PRW\"},\"mpn\":\"1745401\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv\",\"offers\":{\"@type\":\"Offer\",\"price\":\"292.38\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv\",\"sku\":\"FMJX_1745401\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PRW\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=PRW\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block\",\"item\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for PRW?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"PRW","offers":[{"title":"Default Title","offer_id":41324530335828,"sku":"FMJX_1745401","price":292.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PQX1745401.jpg?v=1718465025"},{"product_id":"prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-1","title":"PRW Billet Main Caps 2 to 4-Bolt Conversion Set — Fits Chevy 396-454 Big Block","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout PRW\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/vKlkAt6cuUk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eSuperior Bottom-End Support for Your Chevy Big Block\u003c\/h2\u003e\u003cp\u003eUpgrade your engine's foundation with the PRW Billet Main Caps, designed to convert your Chevy 396-454 from a 2-bolt to a 4-bolt main configuration. These caps are manufactured from high-quality billet steel, providing the necessary rigidity to handle increased horsepower and torque without sacrificing bearing clearance or alignment.\u003c\/p\u003e\u003ch3\u003eKey Features and Advantages\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e Optimized for Chevy 396-454 Big Block engine blocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructural Integrity:\u003c\/strong\u003e Billet steel construction offers superior strength over stock cast caps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 4-bolt design ensures even distribution of clamping force.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Machined:\u003c\/strong\u003e Engineered for a perfect fit and straight bolt alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Contents:\u003c\/strong\u003e Includes 4 center main caps for a complete conversion.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEngine builders trust PRW for their commitment to quality and performance. By installing this 4-bolt conversion kit, you are effectively reinforcing the weakest point of the engine block, allowing for more aggressive tuning and higher RPM limits. This set is an essential upgrade for any enthusiast looking to build a reliable, high-output Big Block Chevy. The precision machining ensures that your main journals remain true, preventing premature bearing wear and catastrophic failure. Experience the difference in engine longevity and performance when you choose professional-grade components. Browse our full selection of engine internals at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular PRW products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwgm-oe-ls-rocker-trunnion-upgrade-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW GM LS Trunnion Upgrade Kit Chromoly Rocker Arm Set — Fits 1997-2015 GM LS-Series Engin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwtrunnion-installation-tool-kit-gm-ls\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Trunnion Installation Tool Kit — Fits GM LS-Series Rocker Arm Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwfulcrum-upgrade-kit-gm-ls-series-16pk\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Fulcrum Upgrade Kit Silicon Bronze Bushing — Fits GM LS-Series Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-65-69-sbf\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1965-1969 Small Block Ford\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-70-87-sbf-302-351w\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1970-1987 SBF 302\/351W\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block\",\"description\":\"Boost your Chevy 396-454 engine strength with PRW Billet 4-Bolt Main Caps. 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Order your set at GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PRW\"},\"mpn\":\"1745401\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-1\",\"offers\":{\"@type\":\"Offer\",\"price\":\"292.38\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-1\",\"sku\":\"FMJX_1745401\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PRW\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=PRW\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block\",\"item\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-1\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for PRW?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"PRW","offers":[{"title":"Default Title","offer_id":41324530368596,"sku":"FMJX_1745401","price":292.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PQX1745401_67630c00-8932-4588-86a7-2069ebff6ef4.jpg?v=1718465025"},{"product_id":"prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-2","title":"PRW Billet Main Caps 2 to 4-Bolt Conversion Set — Fits Chevy 396-454 Big Block","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout PRW\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/vKlkAt6cuUk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHigh-Performance Billet Main Caps for Chevy 396-454\u003c\/h2\u003e\u003cp\u003eThe PRW Billet Main Caps (1745402) provide the ultimate reinforcement for your Big Block Chevy engine. Designed to convert a standard 2-bolt main block into a high-strength 4-bolt setup, these caps are essential for high-performance builds that demand maximum durability. Crafted from premium billet steel, these caps ensure that your crankshaft remains stable under the most demanding conditions.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Chevy 396-454 Big Block engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade:\u003c\/strong\u003e 2-bolt to 4-bolt main conversion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC-machined billet steel for superior strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Straight bolt configuration for consistent clamping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Includes:\u003c\/strong\u003e 3 center main caps for specific application needs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen you increase the power output of your Big Block Chevy, the stock main caps often become the point of failure. These PRW Billet Main Caps mitigate the risk of cap walk and bearing bore distortion, which are common issues in high-horsepower applications. The precision engineering ensures that your main bearing clearances remain consistent, promoting longer engine life and better oil pressure stability. Whether you are building a street-strip monster or a dedicated track vehicle, these caps provide the structural support your engine needs to perform under pressure. Invest in the longevity of your engine build with these high-quality billet components. Find all your essential engine parts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular PRW products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwgm-oe-ls-rocker-trunnion-upgrade-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW GM LS Trunnion Upgrade Kit Chromoly Rocker Arm Set — Fits 1997-2015 GM LS-Series Engin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwtrunnion-installation-tool-kit-gm-ls\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Trunnion Installation Tool Kit — Fits GM LS-Series Rocker Arm Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwfulcrum-upgrade-kit-gm-ls-series-16pk\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Fulcrum Upgrade Kit Silicon Bronze Bushing — Fits GM LS-Series Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-65-69-sbf\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1965-1969 Small Block Ford\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-70-87-sbf-302-351w\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1970-1987 SBF 302\/351W\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block\",\"description\":\"Enhance your Chevy 396-454 bottom end with PRW Billet 4-Bolt Main Caps. Durable, precision-engineered, and ready for high-performance. Shop GGCRACING.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PRW\"},\"mpn\":\"1745402\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-2\",\"offers\":{\"@type\":\"Offer\",\"price\":\"246.49\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-2\",\"sku\":\"FMJX_1745402\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PRW\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=PRW\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block\",\"item\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-2\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for PRW?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"PRW","offers":[{"title":"Default Title","offer_id":41324531122260,"sku":"FMJX_1745402","price":246.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PQX1745402.jpg?v=1718465033"},{"product_id":"prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-3","title":"PRW Billet Main Caps 2 to 4-Bolt Conversion Set — Fits Chevy 396-454 Big Block","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout PRW\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/vKlkAt6cuUk\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eReinforce Your Chevy Big Block with PRW Billet Caps\u003c\/h2\u003e\u003cp\u003eAchieve the engine strength required for high-performance racing with the PRW Billet Main Caps. This set is specifically designed to convert your Chevy 396-454 2-bolt main block into a 4-bolt configuration, providing the added stability necessary for high-torque and high-RPM applications. Built from high-grade billet steel, these caps are designed to withstand the intense stresses of competitive driving.\u003c\/p\u003e\u003ch3\u003eWhy Choose PRW Billet Main Caps?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e Perfect for Chevy 396-454 Big Block platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Quality:\u003c\/strong\u003e High-strength billet steel for superior durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Prevents cap walk and main bearing bore distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Fit:\u003c\/strong\u003e Engineered for accurate alignment and easy installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Contents:\u003c\/strong\u003e Includes 3 center main caps for targeted reinforcement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUpgrading to a 4-bolt main setup is a proven method for increasing the longevity of your engine block. The PRW Billet Main Caps offer a significant upgrade over factory cast caps, ensuring that your crankshaft stays securely in place regardless of the power level. This is a critical modification for anyone looking to build a reliable engine that can handle the rigors of the track. By reducing vibration and maintaining proper bearing clearances, these caps help protect your investment and ensure consistent performance pass after pass. Don't settle for weak factory hardware when building your high-performance engine. Trust the quality of PRW components. Explore our extensive catalog of engine parts at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular PRW products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwgm-oe-ls-rocker-trunnion-upgrade-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW GM LS Trunnion Upgrade Kit Chromoly Rocker Arm Set — Fits 1997-2015 GM LS-Series Engin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwtrunnion-installation-tool-kit-gm-ls\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Trunnion Installation Tool Kit — Fits GM LS-Series Rocker Arm Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwfulcrum-upgrade-kit-gm-ls-series-16pk\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Fulcrum Upgrade Kit Silicon Bronze Bushing — Fits GM LS-Series Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-65-69-sbf\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1965-1969 Small Block Ford\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-70-87-sbf-302-351w\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1970-1987 SBF 302\/351W\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block\",\"description\":\"Upgrade your Chevy 396-454 with PRW Billet 4-Bolt Main Caps. Improve structural integrity and engine reliability. Shop now at GGCRACING for performance.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PRW\"},\"mpn\":\"1745402\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-3\",\"offers\":{\"@type\":\"Offer\",\"price\":\"246.49\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-3\",\"sku\":\"FMJX_1745402\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PRW\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=PRW\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block\",\"item\":\"https:\/\/ggcracing.com\/products\/prwbillet-main-caps-chevy-396-454-2-to-4-bolt-conv-3\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for PRW?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the PRW Billet Main Caps 2 to 4-Bolt Conversion Set \\u2014 Fits Chevy 396-454 Big Block?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"PRW","offers":[{"title":"Default Title","offer_id":41324531155028,"sku":"FMJX_1745402","price":246.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PQX1745402_b4ce7cdc-b402-43ff-8498-58b2908ee0bd.jpg?v=1718465034"},{"product_id":"prwbillet-main-caps-chevy-396-454-straight-outer","title":"PRW Billet Main Caps Straight Outer 4-Bolt Set — Fits Chevy 396-454 Big Block","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout PRW\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/MUYbRUxJO8A\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eMaximum Stability for Chevy 396-454 Engines\u003c\/h2\u003e\u003cp\u003eThe PRW Billet Main Caps (1745403) are the ideal solution for engine builders looking to maximize the structural integrity of their Big Block Chevy. These 4-bolt main caps are precision-engineered to provide a rock-solid foundation for your crankshaft, preventing the common issues of cap walk and bore distortion that occur under high-stress conditions. Made from durable billet steel, these caps are built to handle the demands of high-performance street and track engines.\u003c\/p\u003e\u003ch3\u003eKey Technical Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Designed for Chevy 396-454 Big Block engine blocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 4-bolt design for enhanced clamping force.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium billet steel construction for long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Straight outer bolt pattern for consistent and secure fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Includes:\u003c\/strong\u003e 4 center main caps for comprehensive bottom-end support.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhen you are building a high-horsepower engine, the bottom end is the most critical area to reinforce. The PRW Billet Main Caps offer the strength needed to keep your rotating assembly perfectly aligned, ensuring that your bearings receive the proper lubrication and support they need to survive high-RPM operation. These caps are a must-have for anyone serious about engine building and performance. By choosing these billet steel components, you are investing in the longevity and reliability of your engine, allowing you to push your vehicle to its full potential with confidence. Whether you are upgrading an existing engine or building a new one from the ground up, these main caps are a vital component for success. Find all your performance engine needs at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular PRW products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwgm-oe-ls-rocker-trunnion-upgrade-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW GM LS Trunnion Upgrade Kit Chromoly Rocker Arm Set — Fits 1997-2015 GM LS-Series Engin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwtrunnion-installation-tool-kit-gm-ls\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Trunnion Installation Tool Kit — Fits GM LS-Series Rocker Arm Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwfulcrum-upgrade-kit-gm-ls-series-16pk\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Fulcrum Upgrade Kit Silicon Bronze Bushing — Fits GM LS-Series Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-65-69-sbf\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1965-1969 Small Block Ford\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-70-87-sbf-302-351w\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1970-1987 SBF 302\/351W\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"PRW Billet Main Caps Straight Outer 4-Bolt Set \\u2014 Fits Chevy 396-454 Big Block\",\"description\":\"Upgrade your Chevy 396-454 with PRW Billet 4-Bolt Main Caps. 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Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for PRW?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the PRW Billet Main Caps Straight Outer 4-Bolt Set \\u2014 Fits Chevy 396-454 Big Block?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"PRW","offers":[{"title":"Default Title","offer_id":41324531548244,"sku":"FMJX_1745403","price":288.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PQX1745403_01d28dc9-6447-4a90-b570-150aee690a05.jpg?v=1718465042"},{"product_id":"billet-main-caps-67-86-chevy-350-splayed-outer","title":"PRW Billet Main Caps - 4-Bolt Splayed Outer - SBC 350 Journal — Fits 67-86 Chevy","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout PRW\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003ePRW engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full PRW lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003ePRW Billet Main Caps for Small Block Chevy 350\u003c\/h2\u003e\n\u003cp\u003eReinforce the foundation of your Small Block Chevy (SBC) engine with this set of PRW Billet Main Caps. Designed for 350 cubic inch engines from 1967-1986, these caps are engineered to provide exceptional strength and stability to the crankshaft main bearing journals, crucial for high-performance applications.\u003c\/p\u003e\n\u003ch3\u003eSuperior Strength and Rigidity:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Constructed from high-quality steel for maximum durability and resistance to flex.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Features a 4-bolt design with splayed outer bolts, significantly increasing clamping force and rigidity around the crankshaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJournal Size:\u003c\/strong\u003e Specifically designed for 350 journal sizes, ensuring a precise fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e Compatible with Small Block Chevy engines produced between 1967 and 1986.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Includes:\u003c\/strong\u003e Comes as a set of 3 center caps, providing comprehensive support.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese main caps are essential for engines that will be subjected to increased power output, higher RPMs, or demanding racing conditions. The splayed outer bolt arrangement enhances the cap's ability to resist crankshaft flex and torsional stress, preventing main walk and ensuring consistent bearing clearances. This upgrade is a critical step in building a robust and reliable performance engine. The precision manufacturing ensures a perfect fit, contributing to overall engine longevity and performance.\u003c\/p\u003e\n\u003cp\u003eFortify your engine's bottom end. Get the PRW Billet Main Caps for your SBC at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular PRW products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwgm-oe-ls-rocker-trunnion-upgrade-kit\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW GM LS Trunnion Upgrade Kit Chromoly Rocker Arm Set — Fits 1997-2015 GM LS-Series Engin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwtrunnion-installation-tool-kit-gm-ls\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Trunnion Installation Tool Kit — Fits GM LS-Series Rocker Arm Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwfulcrum-upgrade-kit-gm-ls-series-16pk\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW Fulcrum Upgrade Kit Silicon Bronze Bushing — Fits GM LS-Series Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-65-69-sbf\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1965-1969 Small Block Ford\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/prwhp-aluminum-water-pump-70-87-sbf-302-351w\" style=\"color:#0066cc;text-decoration:none;\"\u003ePRW High Performance Aluminum Water Pump 5\/8in Pilot — Fits 1970-1987 SBF 302\/351W\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"PRW Billet Main Caps - 4-Bolt Splayed Outer - SBC 350 Journal \\u2014 Fits 67-86 Chevy\",\"description\":\"Strengthen your Small Block Chevy 350 with PRW Billet Main Caps. Features splayed outer bolts for superior rigidity. Fits 67-86 Chevy. Shop GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"PRW\"},\"mpn\":\"1735002\",\"url\":\"https:\/\/ggcracing.com\/products\/billet-main-caps-67-86-chevy-350-splayed-outer\",\"offers\":{\"@type\":\"Offer\",\"price\":\"232.91\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/billet-main-caps-67-86-chevy-350-splayed-outer\",\"sku\":\"FMJX_1735002\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"PRW\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=PRW\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"PRW Billet Main Caps - 4-Bolt Splayed Outer - SBC 350 Journal \\u2014 Fits 67-86 Chevy\",\"item\":\"https:\/\/ggcracing.com\/products\/billet-main-caps-67-86-chevy-350-splayed-outer\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the PRW Billet Main Caps - 4-Bolt Splayed Outer - SBC 350 Journal \\u2014 Fits 67-86 Chevy fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for PRW?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the PRW Billet Main Caps - 4-Bolt Splayed Outer - SBC 350 Journal \\u2014 Fits 67-86 Chevy?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"PRW","offers":[{"title":"Default Title","offer_id":41573227724884,"sku":"FMJX_1735002","price":232.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/PQX1735002.jpg?v=1726268102"},{"product_id":"rear-main-cap-support-strap-sbc","title":"Howards Cams Inc Rear Main Cap Support Strap - SBC — Requires Machining","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Howards Cams Inc\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eHowards Cams Inc engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Howards Cams Inc lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:24px 0 8px;\"\u003eWatch in action\u003c\/h3\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:0 0 18px;border-radius:6px;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/TQSsLPCBIrc\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eHowards Cams Inc Steel Rear Main Cap Support Strap for Small Block Chevy\u003c\/h2\u003e\n\u003cp\u003eReinforce the bottom end of your Small Block Chevy engine with this robust rear main cap support strap from Howards Cams Inc. Engineered from durable steel, this strap is designed to significantly increase the rigidity of the main bearing support, crucial for high-performance applications where increased power and stress are present.\u003c\/p\u003e\n\u003ch3\u003eProduct Details:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Rear Main Cap Support Strap\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heavy-duty steel construction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Specifically designed for Small Block Chevy (SBC) engines with wet sump lubrication systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBenefit:\u003c\/strong\u003e Prevents main cap walk and crankshaft flex under high load conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Requires machining for proper fitment and optimal performance. This is not a direct bolt-on part.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSold As:\u003c\/strong\u003e Each (one strap per kit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis support strap is an essential component for any serious engine build, particularly those intended for racing, forced induction, or high-horsepower naturally aspirated setups. By tying the rear main cap to the block, it provides crucial support, reducing the risk of main bearing failure and ensuring the integrity of your engine's rotating assembly. Proper installation by a qualified machine shop is highly recommended to achieve the full benefits of this performance-enhancing part.\u003c\/p\u003e\n\u003cp\u003eGet the best engine strengthening components from GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Howards Cams Inc products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-camshaft\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams Inc. SBC Hydraulic Flat Tappet Camshaft — Lift 0.508\/0.530, Duration 243\/253,\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-cam-sbc-max-oval\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Hydraulic Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/hydraulic-roller-cam-sbc-max-marine\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Marine Hydraulic Roller Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-hyd-roller-camshaft-1\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams 110255-10 Hydraulic Roller Camshaft — High Performance SBC 2200-5800 RPM\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/solid-cam-sbc-max-oval-w-small-base-circle\" style=\"color:#0066cc;text-decoration:none;\"\u003eHowards Cams SBC Max Oval Solid Flat Tappet Camshaft — Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Howards Cams Inc Rear Main Cap Support Strap - SBC \\u2014 Requires Machining\",\"description\":\"Strengthen your Small Block Chevy with the Howards Cams Inc Rear Main Cap Support Strap. Essential for high-performance builds. Shop now at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Howards Cams Inc\"},\"mpn\":\"H350RSWS\",\"url\":\"https:\/\/ggcracing.com\/products\/rear-main-cap-support-strap-sbc\",\"offers\":{\"@type\":\"Offer\",\"price\":\"72.81\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/rear-main-cap-support-strap-sbc\",\"sku\":\"BKRV_H350RSWS\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Parts \u0026 Accessories\",\"item\":\"https:\/\/ggcracing.com\/collections\/parts-\u0026-accessories\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Howards Cams Inc\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=Howards+Cams+Inc\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Howards Cams Inc Rear Main Cap Support Strap - SBC \\u2014 Requires Machining\",\"item\":\"https:\/\/ggcracing.com\/products\/rear-main-cap-support-strap-sbc\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the Howards Cams Inc Rear Main Cap Support Strap - SBC \\u2014 Requires Machining fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for Howards Cams Inc?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the Howards Cams Inc Rear Main Cap Support Strap - SBC \\u2014 Requires Machining?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.\"}}]}\u003c\/script\u003e","brand":"Howards Cams Inc","offers":[{"title":"Default Title","offer_id":41687509696596,"sku":"BKRV_H350RSWS","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/HRCH350RSWS.jpg?v=1731183701"},{"product_id":"bbf-429-460-splayed-main-cap-set","title":"Milodon 11450 BBF 429\/460 Splayed Main Cap Set — 4-Bolt Rear Ductile Iron","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout Milodon\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eMilodon engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Milodon lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eMilodon BBF 429\/460 Splayed Main Cap Set - 11450\u003c\/h2\u003e\n\u003cp\u003eReinforce the foundation of your Big Block Ford 429 or 460 engine with the Milodon 11450 Splayed Main Cap Set. Engineered for maximum strength and rigidity, these 4-bolt main caps are designed to withstand the extreme stresses of high-performance applications, ensuring the reliability of your engine's bottom end.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSplayed Bolt Design:\u003c\/strong\u003e Provides superior clamping force and rigidity compared to conventional main caps, reducing main housing bore distortion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Bolt Configuration:\u003c\/strong\u003e Offers enhanced strength and stability for the crankshaft.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRear Cap Specific:\u003c\/strong\u003e This set includes the rear main cap, crucial for supporting the crankshaft under heavy loads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuctile Iron Construction:\u003c\/strong\u003e Made from high-strength ductile iron for exceptional durability and impact resistance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBig Block Ford Fitment:\u003c\/strong\u003e Precision-engineered for Ford 429 and 460 engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Milodon 11450 main cap set is an essential upgrade for any performance-oriented Big Block Ford build. By splaying the bolts, these caps distribute stress more effectively, preventing cap walk and maintaining critical oil clearances under high RPM and load conditions. The robust ductile iron construction ensures these caps can handle significant power increases. Installation of these caps is a critical step in building a bulletproof engine. Trust Milodon for top-quality engine components that deliver unparalleled strength and reliability. Find the best in engine building at GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular Milodon products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sb-400-main-caps\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Small Block Chevy 400 Journal Rear Main Cap - 4-Bolt Splayed Ductile Iron\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbm-angled-main-cap-set-318-340\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Splayed 4-Bolt Angled Main Cap Set — Fits Mopar 318\/340 Small Block\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sb-chevy-gear-drive\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon 3-Gear Billet Steel Timing Gear Drive — Fits Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/thrust-button\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Camshaft Thrust Button - Plastic - Fits Milodon Gear Drive Chevy\/Mopar\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/laminated-shim-washers-2-gear-drive-parts\" style=\"color:#0066cc;text-decoration:none;\"\u003eMilodon Laminated Shim Washers 12558 Gear Drive Timing Components — Universal Performance \u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Milodon 11450 BBF 429\/460 Splayed Main Cap Set \\u2014 4-Bolt Rear Ductile Iron\",\"description\":\"Strengthen your Big Block Ford 429\/460 with Milodon 11450 Splayed Main Caps. 4-bolt design for ultimate rigidity. 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