Cometic GM Small Block 4.080 inch Bore .040 inch MLS Head Gasket w/ Valve Pockets

When you're rebuilding the top end of your GM Small Block V8, you'll get a pair of Cometic Multi-Layer Steel (MLS) head gaskets with a 4.080 inch bore and a compressed thickness of .040 inches. These gaskets are specifically designed to work with Vortec heads and feature valve pockets to accommodate your engine's valve train.

Cometic's MLS gaskets are built 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 high temperatures up to 482°F (250°C) and works well with both aluminum and cast iron blocks. This construction means they don't require any additional sealants, making installation more straightforward. The center layer is stainless steel and can be varied in thickness to meet different engine build requirements.

These head gaskets are a solid option for a wide range of GM vehicles from the early 80s, including models like the Chevrolet Camaro, GMC C1500, and Buick Regal. They are well-suited for high-output engines where reliable sealing is critical.