Cometic Chevy Mark-IV GM Gen V/VI Big Block V8 .125in Fiber Intake Manifold Gasket Set - C5649-125

AFM is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core with temperature resistance of over 250°F. AFM material has an 85 percent recovery while maintaining strong torque retention. AFM does not require gasket sealers or re-torque.