Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.125" Bore (+.040") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Standard 4000501 Two-piece billet aluminum mount fits

Two-piece billet aluminum mount fits dial-in boards with 8

Straight Bolt

250 in Valve Stem

2003-2014 Chevrolet Express 1500

IMCA A-Mods)

Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.125" Bore (+.040") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Oil Tension Ring: Standard 4000501 Two-piece billet aluminum mount fitsSpeed 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