Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.250" Bore - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard 2010176 Note: Lifters are included with

Note: Lifters are included with Edelbrock Performer-Plus and Performer RPM camshafts

The bolt on arm section lets you carry additional lengths for use with just one shaft

The knurled retaining nut actually sandwiches the degree wheel and holds it in place

Driver comfort is essential to winning races

Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.250" Bore - Top Ring: 5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Oil Tension Ring: Standard 2010176 Note: Lifters are included withSpeed 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