Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.125" Bore (+.030") - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard RS00100306 Reverse Lockout Meets NHRA/IHRA Safety

Reverse Lockout Meets NHRA/IHRA Safety Rules

Pro-Flo XT EFI

costing you power

Ford V8s with EGR

and incorporates the MPI Safety™ u-channel and double rivets technology

Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.125" Bore (+.030") - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard RS00100306 Reverse Lockout Meets NHRA/IHRA SafetySpeed 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