{"product_id":"ls1-ls6-3-910-bore-cylinder-head-gaskets","title":"LS1, LS6 3.910\" Bore Cylinder Head Gaskets","description":"\u003cp\u003eThis steel cylinder head gasket set seals the head-to-block joint on LS1 and LS6 engines, with a 3.910\" bore diameter manufactured slightly larger than the stock 3.898\" block bore to provide proper clearance — this is standard sizing, not a mismatch, even on an unbored stock block.\u003c\/p\u003e\n\u003cp\u003eThis gasket set is built for LS1 and LS6 engines only. LS2, LS3, and LS7 use larger factory bore diameters (4.000\", 4.065\", and 4.125\" respectively) and require a different gasket set — confirm your specific engine before ordering. Head gaskets are single-use; install new gaskets any time the cylinder heads are removed, and never reuse a gasket that's already been torqued down once.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eEngine Applications\u003c\/strong\u003e\u003cbr\u003eFits Chevrolet LS1 and LS6 (5.7L, 346 CID) engines, commonly found in Corvette, Camaro, Firebird, and GTO LS1 applications. Not compatible with LS2, LS3, or LS7 engines, which use different, larger bore diameters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003cbr\u003eFollow GM's factory torque specification and sequence when installing, or the torque spec provided by your aftermarket head bolt or stud manufacturer if you've upgraded from stock hardware. Always install a new gasket set whenever the cylinder heads are removed — head gaskets are single-use and should never be reinstalled after removal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMPATIBLE WITH\u003c\/strong\u003e\u003cbr\u003eCHEVROLET SMALL BLOCK V8 GEN. III\/IV (LS BASED)\u003cbr\u003e• 5.7 L \/ 346 in³ (LS1, LS6)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTES\u003c\/strong\u003e\u003cbr\u003e• Gasket bore diameter is 3.910 in., manufactured slightly larger than the stock 3.898 in. LS1\/LS6 block bore to provide proper clearance — this is standard and does not indicate a mismatch with a stock, unbored block.\u003cbr\u003e• Head gaskets are single-use — always install a new gasket any time the cylinder head is removed; do not reuse.\u003cbr\u003e• Fits LS1 and LS6 engines only — not compatible with LS2, LS3, or LS7, which use larger factory bore diameters (4.000 in., 4.065 in., and 4.125 in. respectively) and require a different gasket.\u003cbr\u003e• Follow GM factory torque specification and sequence when installing, or the specification provided by your aftermarket head bolt\/stud manufacturer if upgraded from stock hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMMON VEHICLE APPLICATIONS\u003c\/strong\u003e\u003cbr\u003eChevrolet Corvette LS1 applications\u003cbr\u003eChevrolet Camaro and Pontiac Firebird LS1 applications\u003cbr\u003ePontiac GTO LS1 applications\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003cbr\u003eColor: Silver\u003cbr\u003eCylinder Bore Diameter: 3.910 in.\u003cbr\u003eGasket Sealant Included: Rubber\u003cbr\u003eMaterial: Steel\u003c\/p\u003e","brand":"Top Street Performance","offers":[{"title":"Default Title","offer_id":49562230456616,"sku":"GK008","price":67.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/8356\/5608\/files\/GK008_01.jpg?v=1777570693","url":"https:\/\/www.topstreetperformance.com\/products\/ls1-ls6-3-910-bore-cylinder-head-gaskets","provider":"Top Street Performance","version":"1.0","type":"link"}