BESTgasket is the world's premier manufacturer of gaskets for vintage and classic American cars and trucks. BEST Gasket complete/full gasket set for 1956-1957 Ford and 1956-1960 Mercury passenger car models using the 312ci OHV Y-block V-8 engine. P/N RS572G-2. BEST Gasket is the leading name in sealing performance in the restoration industry.