{"product_id":"cometic-gasket-gm-lsx-gen-4-sb-v8-071in-dst-cyl-hg-4-200in-bore-1-2in-3-8in-studs-lhs","title":"Cometic Gasket GM LSX Gen-4 SB V8 .071in DST Cyl. HG - 4.200in Bore - 1\/2in \u0026 3\/8in Studs - LHS","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eC15745-071\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 191070590611\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eCometic Gasket GM LSX Gen-4 Small Block V8 .071in DST Cylinder Head Gasket 4.200in Bore 1\/2in \u0026amp; 3\/8in Studs LHS for Chevrolet Performance Crate Engines\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCometic C15745-071 delivers precise sealing for GM LSX Gen-4 Small Block V8 crate engines machined to 4.200in bore. This left-hand side gasket uses .071in DST MLS construction to handle extreme cylinder pressures in racing and high-horsepower street builds. Pair with matching RHS gasket C15744-071 for complete head sealing on 1\/2in and 3\/8in studs.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.200in Bore Diameter:\u003c\/strong\u003e Matches LSX blocks bored or sleeved to 4.200in for zero leak alignment in stroker configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e.071in Thickness:\u003c\/strong\u003e Sets ideal compression height and quench for boosted or naturally aspirated LSX setups up to 15:1 ratios\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/2in \u0026amp; 3\/8in Stud Compatibility:\u003c\/strong\u003e Fits ARP and factory-style LSX head studs without modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLHS Design:\u003c\/strong\u003e Custom contoured for left-hand side cylinder head on Gen-4 LSX blocks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDST MLS Material:\u003c\/strong\u003e Multi-layer steel with Direct Seal Technology resists blowout under 1000+hp and nitrous applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInspect block and head surfaces for flatness within .002in before install\u003c\/li\u003e\n\u003cli\u003eApply light oil to studs and use moly lubricant on bolts\u003c\/li\u003e\n\u003cli\u003ePackaged flat in protective envelope to avoid bends during transit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eTorque in 3 stages to 70ft-lbs max using MLS-specific sequence\u003c\/li\u003e\n\u003cli\u003eRequires 1\/2in ARP 2000 studs or equivalent 3\/8in dowel pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006+\u003c\/td\u003e\n\u003ctd\u003eChevrolet Performance\u003c\/td\u003e\n\u003ctd\u003eLSX376\/480\u003c\/td\u003e\n\u003ctd\u003eGen-4 4.200in Bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006+\u003c\/td\u003e\n\u003ctd\u003eChevrolet Performance\u003c\/td\u003e\n\u003ctd\u003eLSX402\u003c\/td\u003e\n\u003ctd\u003eGen-4 4.200in Bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006+\u003c\/td\u003e\n\u003ctd\u003eChevrolet Performance\u003c\/td\u003e\n\u003ctd\u003eLSX454\u003c\/td\u003e\n\u003ctd\u003eGen-4 4.200in Bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006+\u003c\/td\u003e\n\u003ctd\u003eGM\u003c\/td\u003e\n\u003ctd\u003eLSX Bowtie Race Block\u003c\/td\u003e\n\u003ctd\u003eGen-4 SB V8 4.200in Bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Cometic?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTrusted by NHRA Pro Stock and Top Fuel teams for race-proven reliability\u003c\/li\u003e\n\u003cli\u003eLaser-cut layers ensure leak-free fit on production and custom LSX castings\u003c\/li\u003e\n\u003cli\u003eEngineered in USA with stainless steel for corrosion resistance and reuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will C15745-071 fit LS3 or LS7 OEM engines?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e No fits only LSX Gen-4 blocks at 4.200in bore LS3\/LS7 use smaller bores like 4.065in or 4.125in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the material and compressed thickness?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Multi-layer stainless steel MLS compresses to .051in from .071in nominal for tight sealing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does it come with a warranty?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes Cometic provides 1-year limited warranty for manufacturing defects when installed correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground \/ USPS Priority Mail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Flat protective envelope 14in x 11in x 0.25in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.35 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cometic Gasket","offers":[{"title":"Default Title","offer_id":45019769339983,"sku":"CGSC15745-071","price":282.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/cometic_c15745_071_gasket.png?v=1774459167","url":"https:\/\/www.blackopsautoworks.com\/products\/cometic-gasket-gm-lsx-gen-4-sb-v8-071in-dst-cyl-hg-4-200in-bore-1-2in-3-8in-studs-lhs","provider":"Black Ops Auto Works","version":"1.0","type":"link"}