Cometic Chevrolet Mark-IV Big Block V8 .053in MLS Cylinder Head Gasket - 4.630in Bore

When you're rebuilding the top end of your Chevrolet Mark-IV Big Block V8, a solid cylinder head gasket is crucial for a good seal. This MLS (Multi-Layer Steel) gasket from Cometic is built to handle the pressures and temperatures of these powerful engines. It's designed to fit a wide variety of Chevrolet vehicles, including models like the C10 Pickup, Impala, and Camaro from the 60s and 70s, ensuring a proper seal for your rebuild.

Cometic constructs this gasket using three to five layers of stainless steel. They chose stainless steel for its strength, its ability to rebound under pressure, and its resistance to corrosion. The outer layers of the gasket are embossed and then coated on both sides with Viton, a heat-resistant rubber material. This coating is designed to meet the demands of harsh sealing environments and varying surface finishes, and it can withstand temperatures up to 482°F (250°C). The .053 inch thickness and 4.630 inch bore are specific dimensions for certain Mark-IV Big Block V8 applications.