Cometic GM L18 Vortec 8100 Gen-VII Big Block V8 .036in MLS Cylinder Head Gasket - 4.450in Bore - LHS

This Cometic Multi-Layer Steel (MLS) head gasket is built for the GM L18 Vortec 8100 Gen-VII Big Block V8 engine. It features a 4.450 inch bore and a compressed thickness of .036 inches, designed to provide a strong seal between the cylinder head and the engine block. This gasket is a direct fit for a wide range of Chevrolet and GMC trucks and SUVs from the early 2000s, including models like the Chevrolet Silverado 2500 HD and GMC Sierra 3500.

Cometic constructs these MLS gaskets from multiple layers of stainless steel, which offers increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This advanced coating ensures a reliable seal even under high output conditions and works well with both aluminum and cast iron engine blocks. The center shim layer is stainless steel and can be varied to achieve different thickness requirements, making these gaskets adaptable for various engine builds.

Because these are MLS gaskets, they do not require any additional sealants, simplifying the installation process. They are well-suited for engines that see demanding use, providing a durable and effective seal.