Cometic Chevrolet Mark-IV Big Block V8 .030in MLS Cylinder Head Gasket - 4.630in Bore

Cometic Gasket is well-known for making dependable sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. It's built for Chevrolet Mark-IV Big Block V8 engines and is specifically sized for a 4.630-inch bore, with a compressed thickness of .030 inches. This gasket is designed to handle the demands of high-output engines, ensuring a solid seal between your cylinder heads and engine block.

What makes these MLS gaskets stand out is their construction. They use multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, making it suitable for sealing in harsh environments and on various surface finishes. This design means you don't need to use any additional sealants, and it works well whether you're pairing aluminum heads with aluminum blocks or aluminum heads with cast iron blocks, as it can manage the shearing forces between different metals.

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 anyone rebuilding or refreshing their Mark-IV Big Block V8.