{"product_id":"bbc-rear-main-seal-stg-2-buick-v6-2-3-design","title":"FEL-PRO 2-Piece Rear Main Seal — Fits Big Block Chevy \u0026 Buick V6 (2 \u0026 3 Design)","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 FEL-PRO\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eFEL-PRO engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FEL-PRO 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\/WSy5hywk_ls\" 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 Sealing with FEL-PRO 2-Piece Silicone Rear Main Seal\u003c\/h2\u003e\u003cp\u003eEliminate persistent oil leaks from the rear of your Big Block Chevy or Buick V6 engine with the high-performance \u003cb\u003eFEL-PRO 2-Piece Silicone Rear Main Seal\u003c\/b\u003e. This advanced seal is constructed from premium silicone, offering exceptional flexibility, heat resistance, and long-term durability compared to traditional materials. Its two-piece design is engineered for specific engine configurations (2 \u0026amp; 3 Design), providing a precise fit that effectively prevents oil from escaping the crankshaft. Trust FEL-PRO for reliable sealing solutions that protect your engine's integrity.\u003c\/p\u003e\u003ch3\u003eAdvanced Silicone for Enhanced Durability:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePremium Silicone Material:\u003c\/b\u003e Provides superior resistance to engine oil, extreme temperatures, and chemical degradation, ensuring a longer lifespan.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e2-Piece Design:\u003c\/b\u003e Specifically engineered for Big Block Chevy and Buick V6 engines with 2 \u0026amp; 3 design rear main seal configurations, simplifying installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptimal Sealing Performance:\u003c\/b\u003e Creates a tight, leak-proof barrier around the crankshaft, preventing oil loss and maintaining engine cleanliness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFEL-PRO Quality:\u003c\/b\u003e Manufactured to stringent quality standards, guaranteeing a reliable and durable seal for demanding applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVehicle Fitment:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFits Big Block Chevy (BBC) engines (2-piece seal design)\u003c\/li\u003e\n\u003cli\u003eFits Buick V6 engines (2 \u0026amp; 3 design)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDon't let a leaking rear main seal compromise your engine's performance or lead to costly repairs. The FEL-PRO 2-Piece Silicone Rear Main Seal is a crucial upgrade for any Big Block Chevy or Buick V6 owner. Find the best engine sealing solutions 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 FEL-PRO 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\/buick-v6-head-gasket-196-231-252-eng\" style=\"color:#0066cc;text-decoration:none;\"\u003eFEL-PRO Buick V6 Head Gasket 4.020in Bore 0.039in Thickness — Performance Engine\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/chevy-v6-head-gasket-90-degree-229-262-78-92\" style=\"color:#0066cc;text-decoration:none;\"\u003eFEL-PRO 1002 Performance Head Gasket — Fits GM V6 90 Degree 229-262 ENG 1978-1992, 4.166\" \u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-head-gasket-cast-or-aluminum\" style=\"color:#0066cc;text-decoration:none;\"\u003eFEL-PRO Small Block Chevy Head Gasket 4.166 Bore — Fits SBC Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sbc-400-head-gasket-no-steam-holes-4-190in\" style=\"color:#0066cc;text-decoration:none;\"\u003eFel-Pro SBC 400 Head Gasket 4.190in Bore No Steam Holes — Fits Small Block Chevy\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/sb-ford-head-gasket-302-svo-351w-svo-eng\" style=\"color:#0066cc;text-decoration:none;\"\u003eFEL-PRO 1006 SB Ford Head Gasket — 4.145\" Bore, 302 SVO\/351W SVO\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\":\"FEL-PRO 2-Piece Rear Main Seal \\u2014 Fits Big Block Chevy \u0026 Buick V6 (2 \u0026 3 Design)\",\"description\":\"Secure your engine with the FEL-PRO 2-Piece Silicone Rear Main Seal for Big Block Chevy \u0026 Buick V6 (2 \u0026 3 Design). 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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 FEL-PRO?\",\"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 FEL-PRO 2-Piece Rear Main Seal \\u2014 Fits Big Block Chevy \u0026 Buick V6 (2 \u0026 3 Design)?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most installs are bolt-on with basic hand tools. 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