Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.57in Bore .060in MLS Head Gasket

If you're working on a Chevy Big Block engine, especially one fitted with Brodix Big Duke or Big Brodie heads, this Multi-Layer Steel (MLS) head gasket from Cometic Gasket is what you'll want. It's specifically made to seal those aftermarket heads with a 4.570-inch bore and a compressed thickness of 0.060 inches. This gasket is designed for high-output engines and is built to handle the demands of both aluminum-to-aluminum and aluminum-to-cast iron block configurations without needing any additional sealants.

Cometic builds these gaskets with multiple layers of stainless steel, which gives them increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, ensuring a reliable seal even in tough conditions. The center layer is stainless steel and can be varied to achieve different thicknesses, like the 0.060-inch compressed thickness on this particular gasket. The water ports are undersized, which is a common feature on aftermarket head gaskets to allow for customization during installation.

This gasket fits a wide range of Chevrolet and GM big block applications, including models like the 1965-1975 Chevrolet Bel Air, 1968-1974 Chevrolet C10 Pickup, and 1967-1972 Chevrolet Camaro. It's a well-built component designed for serious engine builds.