Speed-Pro File-Fit Piston Ring Set - Plasma-Moly - 4.125" Bore - 1/16" - 1/16" - 3/16" Thickness - 8-Cylinder - Set of 8 10290 370 lb/in Rate

370 lb/in Rate

1999-2015 GMC Sierra 1500

Straight leg cuffs

Standard Size Ford Style Cap

100 Decibels at 100 feet

Speed-Pro File-Fit Piston Ring Set - Plasma-Moly - 4.125" Bore - 1/16" - 1/16" - 3/16" Thickness - 8-Cylinder - Set of 8 10290 370 lb/in RateSpeed 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