Cometic GM LS Gen-3/4 Small Block V8 .056in MLS Cylinder Head Gasket - 3.910in Bore

This is a Cometic Multi-Layer Steel (MLS) cylinder head gasket, specifically designed for GM LS Gen-3 and Gen-4 small block V8 engines. It features a 3.910-inch bore and a compressed thickness of .056 inches, making it suitable for a wide range of applications including vehicles like the Chevrolet Silverado, GMC Sierra, and Cadillac Escalade. MLS gaskets are known for their ability to handle the demands of modern, high-output engines without needing additional sealants.

Cometic builds these gaskets with 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 handle extreme temperatures up to 482°F (250°C) and works well with different engine block and head materials, including aluminum-to-aluminum or aluminum-to-cast iron combinations. The center layer is stainless steel and can be varied in thickness to meet different build requirements. This construction helps these gaskets withstand the shearing forces that can occur between dissimilar metals.