{"id":9137702174957,"title":"Michigan Motorsports LS Valley Cover Gasket - Fits 1997-2007 Gen 3 LS Engines - Replacement Gasket for LS1 LS6 LM7 LQ4 LQ9 LR4 - Replaces 12558178","handle":"michigan-motorsports-ls-valley-cover-gasket-fits-1997-2007-gen-3-ls-engines-replacement-gasket-for-ls1-ls6-lm7-lq4-lq9-lr4-replaces-12558178","description":"\u003ch3\u003eMichigan Motorsports LS Valley Cover Gasket - Fits 1997-2007 Gen 3 LS Engines - Replacement Gasket for LS1 LS6 LM7 LQ4 LQ9 LR4 - Replaces 12558178\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eThe Michigan Motorsports Gen 3 LS Valley Cover Gasket is a direct-fit\r\nreplacement gasket for 1997–2007 GM Gen III LS engines, offering long-lasting\r\nreliability and OEM-quality sealing. Designed to replace GM part number\r\n12558178, this gasket features a molded rubber construction with a precision\r\nbead that conforms to the engine valley cover and block surface, ensuring leak\r\nprevention and consistent oil sealing. Perfect for use during camshaft\r\ninstallations, valley cover upgrades, or engine reseals, this gasket fits a\r\nwide range of Gen 3 LS engines found in cars, trucks, and SUV platforms. It’s\r\nan essential part of any LS rebuild, maintenance project, or swap.\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003ePrecision Molded Valley Cover Gasket for Gen 3 LS Engines Designed to provide a reliable, leak-free seal between the valley cover and engine block on all 19972007 Gen III LS platforms.\u003c\/li\u003e\r\n \u003cli\u003eOEM Fit and Function Direct Replacement for GM 12558178 Manufactured to meet or exceed OEM specifications, this gasket offers a perfect fit and excellent durability for stock and performance engine builds.\u003c\/li\u003e\r\n \u003cli\u003eDurable Rubber Construction with Molded Bead Sealing Made from high-quality rubber with an integrated sealing bead, ensuring long-lasting oil resistance, proper sealing, and resistance to heat and vibration.\u003c\/li\u003e\r\n \u003cli\u003eCompatible with Multiple LS Gen 3 Applications Fits a wide range of LS-based iron and aluminum blocks, including LS1, LS6, LM7, LQ4, LQ9, LR4, and more.\u003c\/li\u003e\r\n \u003cli\u003eIdeal for Engine Rebuilds, Cam Swaps, or General Maintenance Whether you're doing a valley cover reseal, camshaft upgrade, or replacing a leaking gasket, this is a must-have component for proper LS engine maintenance.\u003c\/li\u003e\r\n \u003c\/ul\u003e","published_at":"2025-10-13T19:08:56+11:00","created_at":"2025-10-13T19:08:53+11:00","vendor":"Michigan Motorsports","type":"Valley Pan","tags":["AUTO_bestsellers_Oct2025"],"price":15000,"price_min":15000,"price_max":15000,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":48865311162605,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B0BPJPHMNQ","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Michigan Motorsports LS Valley Cover Gasket - Fits 1997-2007 Gen 3 LS Engines - Replacement Gasket for LS1 LS6 LM7 LQ4 LQ9 LR4 - Replaces 12558178","public_title":null,"options":["Default Title"],"price":15000,"weight":113,"compare_at_price":null,"inventory_management":"shopify","barcode":"AB614","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/leoforward.com\/cdn\/shop\/files\/B0BPJPHMNQ.jpg?v=1775782124","\/\/leoforward.com\/cdn\/shop\/files\/517rKTs3h6L.jpg?v=1760342935","\/\/leoforward.com\/cdn\/shop\/files\/415AWYcSkvL.jpg?v=1760342935","\/\/leoforward.com\/cdn\/shop\/files\/41F00c3oPdL.jpg?v=1760342935","\/\/leoforward.com\/cdn\/shop\/files\/41fhAQrJQYL.jpg?v=1760342935","\/\/leoforward.com\/cdn\/shop\/files\/41n6OgWg70L.jpg?v=1760342935","\/\/leoforward.com\/cdn\/shop\/files\/61NgNcXDUrL_acd5f573-c672-4dd0-9c2d-fb5993e2e111.jpg?v=1760342935"],"featured_image":"\/\/leoforward.com\/cdn\/shop\/files\/B0BPJPHMNQ.jpg?v=1775782124","options":["Title"],"media":[{"alt":null,"id":36889510936813,"position":1,"preview_image":{"aspect_ratio":1.502,"height":852,"width":1280,"src":"\/\/leoforward.com\/cdn\/shop\/files\/B0BPJPHMNQ.jpg?v=1775782124"},"aspect_ratio":1.502,"height":852,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/B0BPJPHMNQ.jpg?v=1775782124","width":1280},{"alt":null,"id":36889510969581,"position":2,"preview_image":{"aspect_ratio":1.501,"height":853,"width":1280,"src":"\/\/leoforward.com\/cdn\/shop\/files\/517rKTs3h6L.jpg?v=1760342935"},"aspect_ratio":1.501,"height":853,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/517rKTs3h6L.jpg?v=1760342935","width":1280},{"alt":null,"id":36889511002349,"position":3,"preview_image":{"aspect_ratio":1.499,"height":854,"width":1280,"src":"\/\/leoforward.com\/cdn\/shop\/files\/415AWYcSkvL.jpg?v=1760342935"},"aspect_ratio":1.499,"height":854,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/415AWYcSkvL.jpg?v=1760342935","width":1280},{"alt":null,"id":36889511035117,"position":4,"preview_image":{"aspect_ratio":1.501,"height":853,"width":1280,"src":"\/\/leoforward.com\/cdn\/shop\/files\/41F00c3oPdL.jpg?v=1760342935"},"aspect_ratio":1.501,"height":853,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/41F00c3oPdL.jpg?v=1760342935","width":1280},{"alt":null,"id":36889511067885,"position":5,"preview_image":{"aspect_ratio":1.501,"height":853,"width":1280,"src":"\/\/leoforward.com\/cdn\/shop\/files\/41fhAQrJQYL.jpg?v=1760342935"},"aspect_ratio":1.501,"height":853,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/41fhAQrJQYL.jpg?v=1760342935","width":1280},{"alt":null,"id":36889511100653,"position":6,"preview_image":{"aspect_ratio":1.499,"height":854,"width":1280,"src":"\/\/leoforward.com\/cdn\/shop\/files\/41n6OgWg70L.jpg?v=1760342935"},"aspect_ratio":1.499,"height":854,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/41n6OgWg70L.jpg?v=1760342935","width":1280},{"alt":null,"id":36889511133421,"position":7,"preview_image":{"aspect_ratio":1.7,"height":1500,"width":2550,"src":"\/\/leoforward.com\/cdn\/shop\/files\/61NgNcXDUrL_acd5f573-c672-4dd0-9c2d-fb5993e2e111.jpg?v=1760342935"},"aspect_ratio":1.7,"height":1500,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/files\/61NgNcXDUrL_acd5f573-c672-4dd0-9c2d-fb5993e2e111.jpg?v=1760342935","width":2550}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eMichigan Motorsports LS Valley Cover Gasket - Fits 1997-2007 Gen 3 LS Engines - Replacement Gasket for LS1 LS6 LM7 LQ4 LQ9 LR4 - Replaces 12558178\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eThe Michigan Motorsports Gen 3 LS Valley Cover Gasket is a direct-fit\r\nreplacement gasket for 1997–2007 GM Gen III LS engines, offering long-lasting\r\nreliability and OEM-quality sealing. Designed to replace GM part number\r\n12558178, this gasket features a molded rubber construction with a precision\r\nbead that conforms to the engine valley cover and block surface, ensuring leak\r\nprevention and consistent oil sealing. Perfect for use during camshaft\r\ninstallations, valley cover upgrades, or engine reseals, this gasket fits a\r\nwide range of Gen 3 LS engines found in cars, trucks, and SUV platforms. It’s\r\nan essential part of any LS rebuild, maintenance project, or swap.\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003ePrecision Molded Valley Cover Gasket for Gen 3 LS Engines Designed to provide a reliable, leak-free seal between the valley cover and engine block on all 19972007 Gen III LS platforms.\u003c\/li\u003e\r\n \u003cli\u003eOEM Fit and Function Direct Replacement for GM 12558178 Manufactured to meet or exceed OEM specifications, this gasket offers a perfect fit and excellent durability for stock and performance engine builds.\u003c\/li\u003e\r\n \u003cli\u003eDurable Rubber Construction with Molded Bead Sealing Made from high-quality rubber with an integrated sealing bead, ensuring long-lasting oil resistance, proper sealing, and resistance to heat and vibration.\u003c\/li\u003e\r\n \u003cli\u003eCompatible with Multiple LS Gen 3 Applications Fits a wide range of LS-based iron and aluminum blocks, including LS1, LS6, LM7, LQ4, LQ9, LR4, and more.\u003c\/li\u003e\r\n \u003cli\u003eIdeal for Engine Rebuilds, Cam Swaps, or General Maintenance Whether you're doing a valley cover reseal, camshaft upgrade, or replacing a leaking gasket, this is a must-have component for proper LS engine maintenance.\u003c\/li\u003e\r\n \u003c\/ul\u003e"}