Cometic Chevrolet Mark-IV Big Block V8 .045in MLS Cylinder Head Gasket - 4.540in Bore

This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed layers of stainless steel, featuring an outer layer coated with Viton rubber. This construction is designed to handle the demands of high-output engines and offers a compressed operating thickness of .045 inches with a 4.540-inch bore. It's a solid choice for sealing aluminum heads to aluminum blocks, or aluminum heads to cast iron blocks, as it can manage the shearing forces that arise between dissimilar metals.

The strength of MLS gaskets comes from their layered stainless steel construction, which also allows them to rebound and resist corrosion. The Viton coating on the outer layers is a heat-resistant material, capable of withstanding temperatures up to 482 degrees Fahrenheit, making it suitable for harsh sealing environments and various surface finishes. The center shim layer is uncoated stainless steel, and its thickness can be varied to meet different requirements, ensuring a precise fit for your specific engine build.

This gasket fits a wide range of Chevrolet vehicles, including models like the 1965-1975 Chevrolet Bel Air, 1967-1972 Chevrolet Camaro, and 1965-1974 Chevrolet Corvette. Because it requires no additional sealants, installation is straightforward, making it a practical choice for engine rebuilds.