Cometic Chevrolet Mark-IV - GM Gen-V/VI Big Block V8 .098in MLS Cylinder Head Gasket - 4.570in Bore

Cometic Gasket is known for making well-built sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. It's designed for Chevrolet Mark-IV and GM Gen-V/VI Big Block V8 engines, offering a 4.570-inch bore and a compressed thickness of .098 inches. This gasket is ideal for high-output engines where maximum sealing performance is crucial, fitting a wide range of vehicles like the Chevrolet Impala, C10 Pickup, and Corvette from the mid-60s to the late-70s.

What makes this gasket stand out is its construction. It's built with multiple layers of stainless steel, which gives it increased strength and the ability to resist corrosion. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle tough sealing environments and various surface finishes. This means you don't need any extra sealants for installation, and it works well with both aluminum and cast iron blocks. The center layer is stainless steel and can be varied to achieve different thicknesses, making it adaptable for custom setups, especially with aftermarket heads where water ports are undersized for customization.