Cometic GM L42/L61 Gen-1/2 ECOTEC .075in MLS Cylinder Head Gasket - 89mm Bore

This Cometic Multi-Layer Steel (MLS) head gasket is built with a compressed thickness of 0.036 inches and features an 89mm bore, making it suitable for GM L42 and L61 Gen-1/2 ECOTEC engines. MLS gaskets are a solid choice for high-output engines because they offer maximum sealing performance without needing additional sealants. They are well-suited for applications joining aluminum heads to either aluminum or cast iron blocks, as they can handle the shearing forces that can occur between dissimilar metals.

The strength of this gasket comes from its multiple layers of stainless steel, which also help it resist corrosion and maintain its shape. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This coating is designed to perform reliably in demanding sealing environments, even with various surface finishes. The center layer is uncoated stainless steel, and its thickness can be varied to meet different engine build requirements.

This gasket is designed to fit a range of vehicles, including models like the Chevrolet Cobalt, Pontiac Grand Am, and Saturn Ion. It's a well-built component for rebuilding or repairing your engine's top end.