Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.000" Bore (+.030") - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard 15-NEC-CAP-A They have 20% more exhaust

They have 20% more exhaust flow than cast iron Vortec heads

This gear oil formula is fortified with special anti-wear agents and lubricity agents to control wear and drag as well as special additives to control heat

suspension components

Simple Flip Of Switch

Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.000" Bore (+.030") - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard 15-NEC-CAP-A They have 20% more exhaustSpeed 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