Cometic Chevy Small Block 4.06in Bore .040 inch MLS Head Gasket (w/All Steam Holes)

If you're rebuilding the top end of your Chevy Gen-1 Small Block V8, this Cometic Multi-Layer Steel (MLS) head gasket is a solid option. It's specifically made for a 4.060 inch bore and has a compressed thickness of 0.040 inches, with all steam holes included to ensure proper coolant flow. This gasket is designed to handle the demands of high-output engines and fits a wide range of 1980-1986 GM vehicles, including models like the Chevrolet C10 and GMC C1500.

Cometic builds these MLS 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 tough sealing environments and various surface finishes, meaning you won't need any extra sealants for installation. The center layer is also stainless steel, and its thickness can be varied to meet different requirements, which is how they achieve the 0.040 inch compressed thickness on this particular gasket.