Speed-Pro File Fit Plasma Moly Piston Ring Set - 4.125" Bore (+.005") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Standard YA0825USAMM33 Flat Milling:

Flat Milling:

050'' offset the intake rocker arm will be at a slight angle and the roller tip will not be perfectly parallel or centered on the valve tip

Gold plated plug

Simpson "Speed Brow" with low-pressure venturi effect venting

Speed-Pro File Fit Plasma Moly Piston Ring Set - 4.125" Bore (+.005") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Standard YA0825USAMM33 Flat Milling:Speed 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