{"product_id":"cometic-chevrolet-mark-iv-big-block-v8-4-540in-bore-040in-mls-cylinder-head-gasket","title":"Cometic Chevrolet Mark-IV Big Block V8 4.540in Bore .040in MLS Cylinder Head Gasket","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e: C5330-040 \/ \u003cstrong\u003eUPC\u003c\/strong\u003e: 191070006785\u003c\/p\u003e\n\u003ch4 class=\"p1\"\u003e\u003cb\u003eCometic MLS Cylinder Head Gasket for Chevrolet Mark IV Big Block V8 Engines – 4.540\" Bore, 0.040\" Thickness\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eEngineered with precision for high-performance demands, the Cometic C5330-040 delivers consistent sealing under extreme boost and compression levels, outperforming traditional composite and copper options in durability and heat resistance. This multi-layer steel (MLS) design ensures a tight seal that handles the rigors of modified 396, 402, 427, 454, and 502 cubic inch V8s, making it the direct fit solution that keeps your build running strong without leaks or failures.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eKey Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003ePart Number:\u003c\/b\u003e C5330-040\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eUPC:\u003c\/b\u003e 191070006785\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eMaterial:\u003c\/b\u003e Multi-Layer Steel (MLS) with 3 layers\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eBore Size:\u003c\/b\u003e 4.540 inches (115.316 mm)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eBore Shape:\u003c\/b\u003e Valve pocketed\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eCompressed Thickness:\u003c\/b\u003e 0.040 inches (1.016 mm)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eCompressed Volume:\u003c\/b\u003e 10.611 cc\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eCoating:\u003c\/b\u003e None required installs dry for immediate performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis gasket fits Chevrolet Mark IV Big Block V8 engines across a wide range of classic and heavy-duty models from 1965 to 1990. Compatible with over 3,000 vehicle configurations, including:\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" class=\"t1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eMake\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eModel Examples\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eYears\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eChevrolet\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eCamaro, Corvette, Chevelle, Nova, El Camino, Impala, Caprice, Bel Air, Malibu, Monte Carlo\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003e1965-1975\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eChevrolet\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eC10 Pickup, C10 Suburban, C20 Pickup, C20 Suburban, C30 Pickup\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003e1968-1986\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eChevrolet\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eK10 Pickup, K10 Suburban, K20 Pickup, K20 Suburban, K30 Pickup\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003e1968-1986\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eChevrolet\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eBlazer, C3500, K5 Blazer, R20 Suburban, R2500 Suburban, V2500 Suburban\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003e1973-1990\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eGMC\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eC15\/C1500 Pickup, C15\/C1500 Suburban, C25\/C2500 Pickup, C25\/C2500 Suburban, C35\/C3500 Pickup\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003e1968-1986\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eGMC\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003eC2500 Pickup, C2500 Suburban, C3500 Pickup, G25\/G2500 Van\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" class=\"td1\"\u003e\n\u003cp class=\"p1\"\u003e1975-1990\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"p1\"\u003eFull compatibility covers trucks, cars, vans, and SUVs with Mark IV Big Block V8 powerplants. Verify your exact engine displacement and head configuration for seamless installation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eWhat's Included in Your Purchase\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e(1) Cometic C5330-040 MLS Cylinder Head Gasket – Single unit for one cylinder head (order two for a complete V8 engine set)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eNo additional hardware, sealants, or accessories designed for direct bolt-on application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003ePackaging and Shipping Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003ePart Weight:\u003c\/b\u003e Approximately 1 lb\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eShipping Box Dimensions:\u003c\/b\u003e 23.1\" length x 11.3\" width x 1\" height\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eInstall with confidence knowing this gasket's stainless steel layers and load-controlled embossments adapt to surface imperfections for a leak-free seal that supports up to 20+ psi of boost. Ideal for street strips, drag racing, or daily drivers, the C5330-040 sets the standard for Big Block Chevy reliability add to cart today and power up your ride.\u003c\/p\u003e","brand":"Cometic Gasket","offers":[{"title":"Default Title","offer_id":43614219042895,"sku":"CGSC5330-040","price":98.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/SKU_C5330-040_UPC_191070006785.jpg?v=1758297511","url":"https:\/\/www.blackopsautoworks.com\/products\/cometic-chevrolet-mark-iv-big-block-v8-4-540in-bore-040in-mls-cylinder-head-gasket","provider":"Black Ops Auto Works","version":"1.0","type":"link"}