Speed-Pro File Fit Plasma Moly Piston Ring Set - 4.000" Bore (+.065") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Low GBDXS2 Increases power and miles per

Increases power and miles per gallon by burning excess exhaust emissions

Need to convert or repair your existing multi-port fuel injection harness to use EV1/Bosch style injectors

Polished aluminum finish and bold Hurst identification adds a stylish touch to your race shifter

Hard coat anodized body with a cast iron phoshate coated cover

ATF and mineral oil

Speed-Pro File Fit Plasma Moly Piston Ring Set - 4.000" Bore (+.065") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Low GBDXS2 Increases power and miles perSpeed 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