Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.250" Bore - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard RG20001 Using Synchromax improves shifting

Using Synchromax improves shifting

Sharp manufactures roller rockers and rocker components for a variety of applications

Under normal conditions

Lock out your vacuum advance with this lock out bracket

025 in Long

Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.250" Bore - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard RG20001 Using Synchromax improves shiftingSpeed 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