Cometic Chevrolet Mark-IV Big Block V8 .084in MLS Cylinder Head Gasket - 4.375in Bore

When you're rebuilding the top end of your Chevrolet Mark-IV Big Block V8, getting the cylinder head gaskets right is crucial for a solid seal. This Cometic MLS (Multi-Layer Steel) gasket is designed specifically for that task, ensuring your engine's combustion chambers stay sealed under pressure.

Cometic builds these gaskets with three to five layers of stainless steel. They chose stainless steel because it offers increased strength, can rebound well after compression, and resists corrosion. The outer layers are embossed and then coated on both sides with Viton, a heat-resistant rubber material. This coating is tough enough to handle various sealing challenges, different load conditions, and even rougher surface finishes on your block and heads. The Viton coating can handle temperatures up to 482°F (250°C), making it suitable for high-performance applications.

This gasket has a thickness of .084 inches and is designed for a 4.375-inch bore, fitting a wide range of Chevrolet vehicles from the 1960s through the 1990s, including models like the Impala, Camaro, and C10 pickup. Make sure to check the full fitment list to confirm it's the right choice for your specific build.