Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .051in MLS Cylinder Head Gasket - 4.450in Bore - RHS

This is a Cometic Multi-Layer Steel (MLS) cylinder head gasket specifically for the GM L18 Vortec 8100 Gen-VII Big Block V8 engine. It's designed to provide a strong seal for high-output applications, fitting a range of Chevrolet and GMC trucks and SUVs like the Silverado 2500 HD and Sierra 3500. These gaskets are built to handle the demands of modern engines without needing additional sealants.

Cometic builds these gaskets with multiple layers of stainless steel for increased strength and corrosion resistance. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and various surface finishes. The compressed thickness is 0.051 inches, and the bore size is 4.450 inches, making it suitable for both aluminum and cast iron blocks. The layered steel construction also helps them withstand the forces created when mating aluminum heads to iron blocks.