Cometic GM Gen-V/VI Big Block V8 .120in MLS Cylinder Head Gasket - 4.540in Bore

If you're working on a GM Gen-V or Gen-VI Big Block V8, this Cometic Multi-Layer Steel (MLS) cylinder head gasket is built to handle the demands of high-output engines. It's designed to seal effectively between aluminum heads and either aluminum or cast iron blocks, resisting the shearing forces that can occur between dissimilar metals. This gasket fits a wide range of Chevrolet and GMC trucks from the early to mid-90s, including models like the C1500, C2500 Suburban, and K3500.

Cometic constructs these gaskets using multiple layers of stainless steel for increased strength and corrosion resistance. The outer layers are embossed and coated with Viton, a heat-resistant rubber material capable of withstanding temperatures up to 482°F (250°C). This coating ensures a reliable seal even under challenging conditions and across various surface finishes. The center layer is stainless steel and can be varied to achieve different compressed thicknesses, with this specific gasket offering a compressed operating thickness of 0.120 inches and a 4.540-inch bore.

Because these are MLS gaskets, they don't require any additional sealants, making installation more straightforward. They are a solid option for rebuilding or upgrading your engine's top end, providing a durable seal for your Big Block V8.