Cometic Chevy BB Gen IV 396/402/427/454 H/G 4.320 inch Bore .040 inch MLS Head Gasket

Cometic Gasket is well-known for making dependable sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. If you're working on a Chevrolet Mark IV Big Block V8 engine, this gasket is designed to provide a solid seal for your cylinder heads. It's built to handle the demands of higher output engines, ensuring your combustion chambers stay sealed tight.

This gasket uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C) and works well with different head and block materials, including aluminum and cast iron. The compressed thickness is set at 0.040 inches, which is a common spec for these engines. Because it's an MLS design, you won't need to use any additional sealants, making installation more straightforward.

This gasket fits a wide range of vehicles, including models like the Chevrolet Impala, Corvette, and C10 Pickup from various years. It's a well-built component that helps ensure reliable performance for your engine rebuild.