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 1958-1958 GMC PM253

1958-1958 GMC PM253

It features two 3/8" NPT outlets

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

Pro Magnum

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 1958-1958 GMC PM253Speed 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