Cometic Chevy Gen-1 Small Block V8 .030in MLS Cylinder Head Gasket - 4.200in Bore

This is a Cometic Multi-Layer Steel (MLS) cylinder head gasket specifically for Chevrolet Gen-1 Small Block V8 engines. It's built with a 4.200-inch bore and is sized at .030 inches undersize, making it a solid choice for engine rebuilds where precise tolerances are key. These gaskets are designed to handle the demands of high-output engines, offering a strong seal without needing additional sealants.

The construction features 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. This design is effective for sealing between aluminum heads and either aluminum or cast iron blocks, as it can manage the stresses that arise from different metal expansion rates. The center layer is stainless steel and can be varied in thickness to meet different engine build requirements, with this specific gasket having a compressed operating thickness of 0.036 inches.

This gasket fits a wide range of vehicles from the early 1980s, including popular models like the Chevrolet C10, Camaro, and GMC C1500. It's a well-built component for anyone rebuilding or refreshing their Gen-1 Small Block V8.