Cometic Chevrolet BB 111.125mm Bore .080in 396/402/427/454 MLS Head Gasket

This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed layers of stainless steel, featuring an outer coating of Viton rubber. The compressed operating thickness comes in at 0.080 inches, and the bore is 4.375 inches, making it a solid choice for Chevrolet Big Block V8 engines like the 396, 402, 427, and 454. These gaskets are designed to provide maximum sealing performance for high-output engines and don't require any additional sealants, which simplifies installation.

MLS gaskets are well-suited for applications involving aluminum heads with either aluminum or cast iron blocks, as they can handle the shearing forces that can occur between different metals. The multiple stainless steel layers offer increased strength and resilience, while also resisting corrosion. The Viton coating on the outer layers is a heat-resistant material capable of withstanding temperatures up to 482°F (250°C), making it ideal for demanding sealing environments and various surface finishes. The center layer is uncoated stainless steel and can be varied in thickness to meet different requirements.

This gasket fits a wide range of Chevrolet vehicles from the 1960s through the 1990s, including popular models like the Chevrolet Impala, C10 Pickup, and Camaro. It's a well-built component designed for reliable sealing in performance applications.