Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.250" Bore (+.030") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Standard 51110 Three fuel pressure gauge mounting

Three fuel pressure gauge mounting options (fuel pressure gauge not included)

1/8" NPT Boost Reference " 1:1

Ford/Mercury 2

1935-1945 STREET ROD Street Rod CID 283

Use of a restrictor plate increases the water pressure in the blockSince 1938

Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.250" Bore (+.030") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Standard 51110 Three fuel pressure gauge mountingSpeed Pro designs and engineers pistons to meet the most demanding street performance and racing conditions. In combination, we draw upon more than 100 years of Speed Pro engine mastery to enhance the piston ring and its seal. Our Speed Pro(R) brand is recognized for being a winner in every form of racing, and is the proven horsepower leader in oval track and drag racing. Hell Fire(R) Rings: Speed Pro Hell Fire rings, manufactured from a specially