{"product_id":"sealed-powergm-ls1-cast-piston-set-5-7l-97-04","title":"Sealed Power LS1 Cast Piston Set 3.907 Bore — Fits 5.7L GM LS 97-04","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 Sealed Power\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eSealed Power engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Sealed Power lineup with fast shipping and expert fitment support — order with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSealed Power Hypereutectic Pistons for GM LS1 5.7L\u003c\/h2\u003e\u003cp\u003eGive your 5.7L GM LS1 engine the performance it deserves with this set of 8 Sealed Power hypereutectic cast pistons. Specifically designed for the 1997-2004 LS1 platform, these pistons feature a 3.907-inch bore and are engineered to handle the demands of modern high-performance engines. The hypereutectic alloy provides excellent heat dissipation and structural strength, while the advanced skirt coating significantly reduces friction, promoting smoother operation and increased horsepower potential.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM LS-Series (LS1 5.7L)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYears:\u003c\/strong\u003e 1997-2004\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Hypereutectic Cast Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 3.907 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Grooves:\u003c\/strong\u003e 1.50 x 1.50 x 3.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkirt Finish:\u003c\/strong\u003e Anti-friction coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Complete set of 8\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you are performing a stock-style rebuild or preparing your LS1 for mild performance upgrades, these pistons offer the reliability and precision fitment you need. Sealed Power is a trusted name in engine components, and these LS1 pistons are built to withstand the high-revving nature of the GM LS platform. Ensure your engine build is a success by using high-quality parts that meet strict manufacturing standards. Find everything you need for your next engine project 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 Sealed Power 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\/speed-pro-performance-2015-x3009-r1006\" style=\"color:#0066cc;text-decoration:none;\"\u003eSealed Power Speed Pro Performance Street Catalog – 2015 Edition\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/cam-bearing-set-36\" style=\"color:#0066cc;text-decoration:none;\"\u003eSealed Power Cam Bearing Set Standard Journal — Fits Small Block Chevy V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/main-bearing-spacer-set\" style=\"color:#0066cc;text-decoration:none;\"\u003eSealed Power Main Bearing Spacer Set Standard — Fits 351C Crank in SBF\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/rod-bearing-171\" style=\"color:#0066cc;text-decoration:none;\"\u003eSealed Power 1555CPA10 Connecting Rod Bearing - 0.010 in Undersize - Pontiac V8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/rod-bearing-172\" style=\"color:#0066cc;text-decoration:none;\"\u003eSealed Power Rod Bearing 0.020 Undersize — Fits Pontiac V8 Engines\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\":\"Sealed Power LS1 Cast Piston Set 3.907 Bore \\u2014 Fits 5.7L GM LS 97-04\",\"description\":\"Refresh your 5.7L GM LS1 engine with Sealed Power hypereutectic pistons. 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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 Sealed Power?\",\"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 Sealed Power LS1 Cast Piston Set 3.907 Bore \\u2014 Fits 5.7L GM LS 97-04?\",\"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":"Sealed Power","offers":[{"title":"Default Title","offer_id":41068395757652,"sku":"BDBR_H868CP25MM","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/SEAH868CP25MM.jpg?v=1716770568","url":"https:\/\/ggcracing.com\/products\/sealed-powergm-ls1-cast-piston-set-5-7l-97-04","provider":"GGCRACING INC","version":"1.0","type":"link"}