Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.000" Bore (+.060") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 1/8", Oil Tension Ring: Standard Metal Shrinker / Stretcher Combo Integrated ignition timing control

Integrated ignition timing control

Displacement ranging from a high RPM 350-427ci with naturally aspirated applications in the various sportsman classes

Heat Screen offers an excellent way to reflect radiant heat away from a vehicles interior and because of its flexibility

1952-1952 Willys 4-73 Sedan Delivery

for better cornering stability and allowing room for popular aftermarket rear-mounted fuel tanks

Speed-Pro Standard Gap Plasma Moly Piston Ring Set - 4.000" Bore (+.060") - Top Ring: 1/16", 2nd Ring: 1/16", Oil Ring: 1/8", Oil Tension Ring: Standard Metal Shrinker / Stretcher Combo Integrated ignition timing controlSpeed 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 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 Rings: Speed Pro Hell Fire rings, manufactured from a specially hardened