Cometic Chevrolet Mark-IV - GM Gen-V/VI Big Block V8 .036in MLS Cylinder Head Gasket - 4.570in Bore

Starting with a compressed operating thickness of 0.036 inches, this Cometic Multi-Layer Steel (MLS) head gasket is built for serious performance. It’s constructed with multiple embossed layers of stainless steel, giving it the strength to handle the demands of high-output engines. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, ensuring a solid seal even in harsh conditions. This makes it a great choice for pairing aluminum heads with either aluminum or cast iron blocks, as it can resist the shearing forces that can occur between these different materials.

The center layer is uncoated stainless steel, and Cometic uses this to achieve different thickness requirements, like the 0.036 inches found here. These MLS gaskets don't require any additional sealants, simplifying installation. They are designed to provide maximum sealing performance, and the stainless steel construction offers increased strength and corrosion resistance. This gasket also features undersized water ports, which is a common feature on gaskets intended for aftermarket heads, allowing for customization during your build.

This gasket is suitable for a wide range of Chevrolet and GM vehicles, including models like the 1965-1975 Chevrolet Bel Air, 1968-1974 Chevrolet C10 Pickup, and 1967-1972 Chevrolet Camaro. It's also a good option for Brodix Big Duke and Brodie heads.