Cometic Chevrolet Mark-IV Big Block V8 .086in MLS Cylinder Head Gasket - 4.540in Bore

When you're rebuilding the top end of your Chevrolet Mark-IV Big Block V8, you need a head gasket that can handle the power. This Cometic Multi-Layer Steel (MLS) head gasket is built for those high-output engines, offering a compressed thickness of .086 inches and a 4.540-inch bore to match your engine's needs. It's designed to provide a solid seal without needing any extra sealants, making the installation process more straightforward.

Cometic constructs these gaskets from multiple layers of stainless steel, which gives them increased strength and the ability to rebound, helping to resist corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and varying surface finishes. This makes them suitable for use with both aluminum and cast iron blocks, and they can manage the shearing forces that can occur between different metal types. The center layer is also stainless steel, allowing for precise thickness control.

This gasket fits a wide range of Chevrolet vehicles from the 1960s through the 1990s, including popular models like the Impala, Chevelle, and C10 Pickup. It's a well-built component designed to ensure a reliable seal for your engine rebuild.