Cometic GM LS Gen-3/4 Small Block V8 .040in MLS Cylinder Head Gasket - 4.030in Bore

When you're rebuilding the top end of your GM LS Gen-3 or Gen-4 small block V8, you'll find a set of Cometic Multi-Layer Steel (MLS) head gaskets in this package. These gaskets are specifically made to fit a wide range of GM vehicles, including models like the Chevrolet Corvette, Cadillac CTS, and Buick LaCrosse. They feature a .040 inch thickness and a 4.030 inch bore, which is crucial for proper sealing in these engines.

Cometic uses their HP shim technology in these gaskets, which helps increase the clamping force around the combustion chamber. This is especially beneficial for open deck blocks, as it creates a stronger seal. The outer layers of the gasket are embossed and coated with Viton, a material known for its resistance to heat and chemicals, further enhancing the gasket's ability to hold a seal under demanding conditions.