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.
Ford Windsor .047in. Fiber Intake End Seals Kit; Ford Racing N351 Sportsman Cylinder Head M-6049-N351
