Cometic Chevy Gen1 Small Block V8 .027in MLS Cyl Head Gasket-4.135in Bore-With Edelbrock RPM Heads

This is a Cometic Multi-Layer Steel (MLS) cylinder head gasket designed for Chevrolet Gen-1 Small Block V8 engines. It's specifically made to work with Edelbrock RPM heads and features a 4.135-inch bore. MLS gaskets are a popular choice for rebuilding or upgrading engines that see a lot of use because they offer a strong seal without needing any extra sealants.

Cometic builds these gaskets with multiple layers of stainless steel. The outer layers are coated with Viton, a heat-resistant rubber material that can handle high temperatures and different surface finishes. This construction helps the gasket withstand the forces generated in high-output engines and resists corrosion. The center layer is stainless steel and can be varied to achieve different compressed thicknesses, like the .027-inch starting thickness on this gasket, which results in a .036-inch operating thickness when compressed. This design makes them suitable for pairings like aluminum heads on cast iron blocks.