Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The Cometic molded rubber valve cover gasket set for Chevrolet Mark‑IV and GM Gen‑V/VI big block V8s, .188 inch thickness, replaces common valve cover seals with a durable molded rubber solution aimed at improved sealing over cork or paper gaskets. Construction uses Viton-coated embossed outer layers and a multi-layer stainless core concept from Cometic MLS heritage. These gaskets resist blowouts, over‑tightening and high vacuum, offering race-inspired materials and performance above typical OE-style gaskets.
Cometic Chevrolet Mark-IV - GM Gen-V/VI Big Block V8 .188in Molded Rubber Valve Cover Gasket Set
