Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.000" Bore - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard HASZF20IM AP6 / JFZ / Wilwood

AP6 / JFZ / Wilwood Calipers

Ultra lightweight and strong

25 x 32 x 6

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Long water pumps were used on most 1969 and later passenger cars and 1973 and later trucks

Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.000" Bore - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard HASZF20IM AP6 / JFZ / WilwoodSpeed 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