Cometic Chevrolet Mark-IV Big Block V8 .092in MLS Cylinder Head Gasket - 4.320in Bore

When you're rebuilding the top end of your Chevrolet Mark-IV Big Block V8, a solid head gasket is crucial for sealing the combustion chamber and coolant passages. This Cometic Multi-Layer Steel (MLS) head gasket is built for the job, featuring a compressed thickness of .092 inches and a bore size of 4.320 inches, designed to fit a wide range of Chevrolet vehicles like the Impala, Chevelle, and C10 pickups from the mid-60s through the early 80s.

What you get here is a well-built gasket that uses multiple layers of stainless steel for increased strength and resistance to shearing forces, especially important when mating aluminum heads to cast iron blocks. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and doesn't require any additional sealants. This construction helps ensure a reliable seal under high output conditions, making it a solid choice for performance builds or restorations.