Cometic Chevy Small Block All 12-23 Deg. Head 4.200in Bore .030in MLS Head Gasket

This Cometic Multi-Layer Steel (MLS) head gasket is built with embossed outer layers coated in Viton, a heat-resistant rubber material that can handle up to 482 degrees Fahrenheit. The compressed operating thickness is 0.030 inches, and it's designed for a 4.200-inch bore, making it suitable for Brodix 12-23 degree heads. These gaskets are a solid choice for high-output engines, offering maximum sealing performance without needing additional sealants.

MLS gaskets are well-built with multiple layers of stainless steel, which gives them strength and resistance to corrosion. They can also handle the shearing forces that occur between aluminum heads and cast iron blocks, or even between two aluminum components. The center layer is stainless steel and can be varied for different thickness needs, while the outer layers are coated with Viton to seal effectively in harsh conditions and on various surface finishes. The water ports on this particular gasket are undersized, allowing for customization when used with aftermarket heads.

This gasket fits a wide range of Chevrolet and GMC trucks, SUVs, and cars from 1980 to 1986, including popular models like the Chevrolet C10 and GMC C1500. It's also compatible with vehicles like the Camaro and Corvette from the same era.