Cometic AMC Gen-3 V8 .064in ArmorCore Exhaust Manifold Gasket Set - With Dogleg PortsCometic Gasket Inc. Exhaust Gaskets are designed to be used with manifolds or headers. Offered in a range of materials to make sure you are covered with any cylinder head and manifold header combination. All exhaust gaskets are designed to be used without the use of messy sealants. This Part Fits: Year Make Model Submodel 1971 1974 American Motors Javelin AMX 1971 1974 American Motors Javelin Base 1971 1972 American Motors Javelin SST