AFM is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core with temperature resistance of over 250A?F. AFM material has an 85 percent recovery while maintaining strong torque retention. AFM does not require gasket sealers or re-torque.
Chevrolet Mark-IV Big Block V8 .042in. ArmorCore Exhaust Manifold Gasket Set; Brodix Big Duke/Head Hunter Heads
