Cometic GM LS1 SB 4.160 inch Bore .056 inch MLS-5 Head Gasket

This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed layers of stainless steel, featuring Viton rubber coating on the outer layers. With a compressed operating thickness of 0.056 inches and a bore size of 4.160 inches, it's designed to handle the demands of high-output GM LS Gen-3/4 small block V8 engines. These gaskets are well-suited for applications using both aluminum heads with aluminum blocks and aluminum heads with cast iron blocks, as they can effectively manage the shearing forces that arise between dissimilar metals.

The strength of MLS gaskets comes from their layered stainless steel construction, which also allows them to rebound and resist corrosion. The Viton coating on the outer layers is a heat-resistant material capable of withstanding temperatures up to 482 degrees Fahrenheit, making it suitable for harsh sealing environments and various surface finishes. The center layer is uncoated stainless steel, and its thickness can be varied to meet different requirements. Because of their construction, these Cometic MLS head gaskets do not require additional sealants for installation.

This gasket fits a wide range of GM vehicles, including popular models like the Chevrolet Corvette, Chevrolet Silverado 1500, and Cadillac CTS. It's a solid option when rebuilding or replacing the cylinder head components on your LS-based engine.