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 110004 MSD Selector Switch 8672 6000-8200

MSD Selector Switch 8672 6000-8200 RPM

1-1/2" tuned length primary tubes are used for increased exhaust flow

Wrap around style panel has upper and lower mounting flanges and measures 29"W x 7" tall

Gas / Alcohol

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 110004 MSD Selector Switch 8672 6000-8200Speed 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