NICE used pair of FoMoCo exhaust manifolds casting number ECH-9431-A and ECH-9430-A. I believe that these will fit and may be correct for 1955 1956 1957 1958 1959? Ford Thunderbird, Fairlane etc. Y-block 292 312 352? V8 with dual exhaust. They are in very good condition with moderate suface rust....no cracks of repairs. They will likely need new studs. Nice addition to any correct restoration.