Cometic Chevrolet Mark-IV Big Block V8 .089in MLS Cylinder Head Gasket - 4.630in Bore

When you're rebuilding the top end of your Chevrolet Mark-IV Big Block V8, you need a head gasket that can handle the pressure. This Cometic Multi-Layer Steel (MLS) head gasket is built for that job. It features embossed outer layers coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, ensuring a solid seal even in demanding conditions. The compressed operating thickness is .089 inches with a 4.630-inch bore, making it suitable for a wide range of Mark-IV Big Block applications, including vehicles like the 1965-1975 Chevrolet Bel Air, 1967-1972 Chevrolet Camaro, and 1965-1974 Chevrolet Corvette.

The multi-layer stainless steel construction gives these gaskets increased strength and the ability to rebound, which helps them resist corrosion and maintain their seal. Because they're made of multiple layers of steel, they're strong enough to handle the shearing forces that can occur between aluminum heads and cast iron blocks, or between two aluminum components. Cometic MLS gaskets are designed to provide maximum sealing performance for high-output engines and don't require any additional sealants, simplifying installation.