Cometic Chevrolet Mark-IV Big Block V8 .052in MLS Cylinder Head Gasket - 4.320in 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 Big Block V8 engines, specifically for builds where you need a reliable seal under demanding conditions. This gasket helps ensure your engine runs smoothly by preventing leaks between the cylinder head and the engine block, which is crucial for maintaining compression and proper cooling.

What makes this gasket stand out is its construction. It's made from multiple layers of stainless steel, which gives it a lot of strength and helps it resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This combination is great for sealing aluminum heads to either aluminum or cast iron blocks, as it can handle the different expansion rates and shearing forces between those materials. The compressed thickness is 0.036 inches, and it’s designed to work with a 4.320-inch bore, fitting a wide range of Chevrolet vehicles from the mid-60s to the mid-80s, including models like the Impala, Chevelle, and C10 Pickup.