Cometic Chevrolet Mark-IV - GM Gen-V/VI Big Block V8 .027in MLS Cylinder Head Gasket - 4.570in Bore

Cometic Gasket is a well-known name for building solid engine components, and this Multi-Layer Steel (MLS) head gasket is a prime example. It's designed for Chevrolet Mark-IV, GM Gen-V/VI Big Block V8 engines, offering a compressed thickness of .027 inches and a bore size of 4.570 inches. This gasket is built to handle the demands of high-output engines, whether you're pairing aluminum heads with an aluminum block or cast iron block.

The construction features multiple layers of stainless steel, which gives it 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°F and works well in tough sealing conditions. The center layer is uncoated stainless steel, allowing for variations in thickness to meet specific needs. This gasket is also noted for having undersized water ports, which gives you flexibility for customization when working with aftermarket heads.

This gasket fits a wide range of vehicles, including models like the Chevrolet Impala, C10 Pickup, and Corvette from various years. It's designed to provide maximum sealing performance without needing additional sealants.