Cometic GM Gen-V/VI Big Block V8 .075in MLS Cylinder Head Gasket - 4.630in Bore

This is a Cometic Multi-Layer Steel (MLS) cylinder head gasket designed for GM Gen-V/VI Big Block V8 engines. It features a 4.630-inch bore and a compressed thickness of 0.075 inches, making it suitable for a wide range of Chevrolet and GMC trucks and vans from the early 90s through the late 90s, including models like the C1500, C2500 Suburban, and K3500.

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 handles demanding sealing environments and various surface finishes without needing additional sealants. This construction is ideal for pairing aluminum heads with either aluminum or cast iron blocks, as it can manage the shearing forces that can occur between dissimilar metals.

The center layer is uncoated stainless steel and can be varied to achieve different thicknesses, allowing for precise engine builds. These gaskets are a solid option for high-output engines where reliable sealing is critical.