Cometic GM LS1 SB 4.130 inch Bore .098 inch MLS-5 Head Gasket

This is a Cometic Multi-Layer Steel (MLS) head gasket, specifically designed for GM LS Gen-3 and Gen-4 small block V8 engines. It features a 4.130 inch bore and a compressed thickness of .098 inches. MLS head gaskets are a popular choice for high-output engines because they offer excellent sealing without the need for additional sealants, making them suitable for applications using aluminum heads with either aluminum or cast iron blocks. They are well-built with multiple layers of stainless steel for increased strength and corrosion resistance.

The outer layers of this gasket are embossed and coated with Viton, a heat-resistant rubber material capable of withstanding temperatures up to 482 degrees Fahrenheit. This makes them ideal for handling the demanding conditions found in performance applications. The center layer is uncoated stainless steel, and its thickness can be varied to meet different sealing requirements. This particular gasket is designed to fit a wide range of GM vehicles, including models like the Chevrolet Silverado, Cadillac Escalade, and Chevrolet Camaro.