Cometic Chevrolet Mark-IV Big Block V8 .089in MLS Cylinder Head Gasket - 4.540in Bore

This Cometic Multi-Layer Steel (MLS) head gasket is built with a compressed operating thickness of 0.089 inches and a 4.540-inch bore, making it a solid choice for Chevrolet Mark IV Big Block V8 engines. MLS gaskets are known for their ability to handle high output engines and are suitable for combinations of aluminum heads with aluminum blocks or cast iron blocks, as they can manage the shearing forces between different metals.

The construction features multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are embossed and coated on both sides with Viton, a heat-resistant rubber material capable of withstanding temperatures up to 482 degrees Fahrenheit, ensuring a reliable seal in demanding conditions. The center layer is uncoated stainless steel, allowing for precise thickness control. These gaskets are designed to provide maximum sealing performance without the need for additional sealants.

This gasket fits a wide range of Chevrolet vehicles from the mid-60s through the early 80s, including popular models like the C10 Pickup, Impala, and Camaro. It's a well-built component for rebuilding or repairing your engine's top end.