Speed-Pro File Fit Plasma Moly Piston Ring Set - 4.125" Bore (+.005") - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard SR01324 Bert / Brinn Transmission

Bert / Brinn Transmission

Use on most aftermarket aluminum cylinder blocks and heads to replace plugs removed or damaged during machining

heat and wear in any type of engine

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3/8 in Drive

Speed-Pro File Fit Plasma Moly Piston Ring Set - 4.125" Bore (+.005") - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard SR01324 Bert / Brinn TransmissionSpeed 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