Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.125" Bore (+.030") - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard Ear Piece increasing the thickness in important

increasing the thickness in important safety areas and creating a more uniform thickness throughout

Ford: M-400 71 - 73 6

It features two 3/8" NPT outlets

1958-1958 GMC PM253

Front Sway Bar is Tubular and 3 Way-Adjustable Rear Sway Bar is Tubular and 2 Way-Adjustable

Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.125" Bore (+.030") - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard Ear Piece increasing the thickness in importantSpeed 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