Speed-Pro File Fit Plasma Moly Piston Ring Set - 4.000" Bore (+.025") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Standard BRONCO-G1 the Hybrid Pro Lite is

the Hybrid Pro Lite is the ultimate in safety and comfort

diesel and Ethanol/Methanol (E85) fuels

310 or larger bore

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This pan requires our 15-401 pickup

Speed-Pro File Fit Plasma Moly Piston Ring Set - 4.000" Bore (+.025") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Standard BRONCO-G1 the Hybrid Pro Lite isSpeed 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 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 Rings: Speed Pro Hell Fire rings, manufactured from a specially hardened