Cometic Chevrolet BB 111.125mm Bore .036in 396/402/427/454 MLS Head Gasket

This is a Cometic Multi-Layer Steel (MLS) head gasket designed for Chevrolet Big Block V8 engines. It features a 111.125mm (4.375 inch) bore and a compressed thickness of 0.036 inches. These gaskets are built to handle the demands of high-output engines and are suitable for applications using aluminum heads with either aluminum or cast iron blocks, as they can manage the shearing forces between different metals.

Cometic MLS gaskets are constructed from multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can withstand temperatures up to 482 degrees Fahrenheit, ensuring a strong seal even under harsh conditions and on various surface finishes. The center layer is uncoated stainless steel and can be varied to achieve different thicknesses, like the 0.036 inches found on this gasket. Because they are well-built with multiple layers and specialized coatings, these gaskets do not require any additional sealants for installation.

This gasket fits a wide range of Chevrolet vehicles from the mid-60s through the early 80s, including popular models like the Impala, Chevelle, Camaro, and Corvette, as well as various C/K series trucks and Suburbans. It's a solid option when rebuilding or refreshing the top end of your big block Chevrolet.