Cometic Chevrolet 348/409 W-Series Big Block V8 .080in MLS Cylinder Head Gasket - 4.200in Bore

Cometic Gasket is known for making well-built sealing components, and this Multi-Layer Steel (MLS) head gasket is a prime example. If you're working on a Chevrolet 348 or 409 W-Series big block V8 engine, this gasket is designed to provide a strong seal between your cylinder head and block. It's specifically made for a 4.200-inch bore and has an operating thickness of .080 inches when compressed.

This gasket is constructed from multiple layers of stainless steel, which gives it increased strength and the ability to rebound, helping it resist corrosion. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle tough sealing environments and various surface finishes. This construction means the gasket doesn't require any additional sealants and works well with both aluminum and cast iron blocks, even when paired with aluminum heads. The center layer is stainless steel and can be varied to achieve different thicknesses, like the .080 inches on this particular gasket.

This gasket fits a range of classic Chevrolet vehicles, including models like the 1958-1965 Impala, 1958-1965 Bel Air, and 1960-1961 C10 Pickups. It's a solid option for rebuilding or maintaining your high-output W-Series engine.