Cometic Brodix Chevrolet Big Duke / Brodie 109.47mm Bore .040in MLS Head Gasket

When you're rebuilding a high-output Chevrolet Big Block V8, especially one using Brodix Big Duke or Brodie heads, getting the cylinder head seal just right is critical. This Multi-Layer Steel (MLS) head gasket from Cometic is built to handle those demanding conditions. It's designed to provide a strong, reliable seal between your cylinder heads and block, which is essential for maintaining compression and preventing leaks in powerful engines.

This gasket is constructed from multiple layers of stainless steel, giving it increased strength and the ability to rebound, which helps resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and various surface finishes. The compressed thickness of this gasket is .040 inches, and it features undersized water ports that allow for customization, making it a solid choice for engines with aftermarket heads. It's suitable for use with aluminum heads on either aluminum or cast iron blocks, as MLS gaskets can manage the shearing forces that can occur between different metals.

This gasket fits a wide range of Chevrolet Mark IV and GM Gen V/VI Big Block V8 engines, including popular models like the Chevrolet Impala, Chevelle, and C10 Pickup from various years. Because it's an MLS gasket, it doesn't require any additional sealants, simplifying the installation process.