{"product_id":"michigan-motorsports-ls1-ls6-mls-head-gasket-4-8l-5-3l-5-7l-ls-engines-oem-replacement-12589226","title":"Michigan Motorsports LS1 LS6 MLS Head Gasket – 4.8L \/ 5.3L \/ 5.7L LS Engines | OEM Replacement 12589226","description":"\u003cp\u003eEnhance sealing reliability with the Michigan Motorsports LS1 LS6 MLS Head Gaskets, built for LS based engines in the 4.8L, 5.3L, and 5.7L family. The multi-layer steel construction delivers consistent sealing across the bore, helping you approach rebuilds, upgrades, or performance tweaks with confidence. This gasket line is designed to perform under demanding conditions while staying true to GM style fitment and OEM intent.\u003c\/p\u003e\n\n\u003ch3\u003eMLS technology and material advantages\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMulti-layer steel construction creates uniform sealing pressure for robust resistance to leaks.\u003c\/li\u003e\n  \u003cli\u003eEngineered to withstand higher temperatures and resist corrosion for long term reliability.\u003c\/li\u003e\n  \u003cli\u003eQuality you can trust, aiming to match GM specifications for a seamless replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment, specs, and compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 4.8L, 5.3L, and 5.7L LS engines, including LS1 and LS6 variants, with a 3.940 inch bore diameter.\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for GM part number 12589226, enabling straightforward installation without major modifications.\u003c\/li\u003e\n  \u003cli\u003eSuitable for stock builds as well as high compression and forced induction applications where sealing matters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerformance and real world durability\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMaintains a tight seal under high load, helping protect against leaks during demanding driving scenarios.\u003c\/li\u003e\n  \u003cli\u003eHeat and corrosion resistance support long term sealing integrity in extreme operating conditions.\u003c\/li\u003e\n  \u003cli\u003eBuilt to endure repeated engine cycles, making it a solid option for daily drivers and performance projects alike.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat you gain\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM-quality replacement that fits LS engines with minimal fuss.\u003c\/li\u003e\n  \u003cli\u003eSupports higher compression and performance builds while maintaining sealing reliability.\u003c\/li\u003e\n  \u003cli\u003eTrusted by engine builders and LS enthusiasts for everyday driving and race-ready setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eConsider this MLS gasket as a strategic part of an engine rebuild or upgrade plan. It offers a viable path to reliable sealing without locking you into a single operating condition, keeping options open for a range of LS engine projects.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What engines does this MLS head gasket fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits 4.8L, 5.3L, and 5.7L LS engines using GM part 12589226.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this a direct replacement for factory gaskets?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it is designed as a direct GM 12589226 replacement with straightforward installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Michigan Motorsports","offers":[{"title":"Default Title","offer_id":42465941094485,"sku":"B0825CY22R","price":119.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/michigan-motorsports-ls1-ls6-mls-head-gasket-box.jpg?v=1778029452","url":"https:\/\/plentytorque.co.uk\/products\/michigan-motorsports-ls1-ls6-mls-head-gasket-4-8l-5-3l-5-7l-ls-engines-oem-replacement-12589226","provider":"PlentyTorque","version":"1.0","type":"link"}