Cometic Chevrolet 348/409 W-Series Big Block V8 .064 AM Exhaust Manifold Gasket Set

Cometic Gasket is known for making well-built sealing solutions for high-output engines. This exhaust manifold gasket set is built using their Multi-Layer Steel (MLS) technology, designed to handle the demands of powerful V8s like the Chevrolet 348/409 W-Series big blocks. It fits a range of Chevrolet vehicles from the early 60s, including models like the Bel Air, Impala, and Biscayne.

The MLS construction uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant elastomer that can handle harsh sealing environments and varying surface finishes without needing additional sealants. The center shim layer is uncoated stainless steel, allowing for precise thickness control. This particular gasket has a port size of 2.082" x 1.508", ensuring a good match for your exhaust manifolds.