Speed Pro Economy Piston Rings 3.910" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron 1030103 8 AN O-Ring

8 AN O-Ring

All the features that racers are accustomed to today are developed at BUTLERBUILT(R)

Precision stamped for easy weld-on installation

Keep track of tire settings before and after race

Power / Speed Calculator

Speed Pro Economy Piston Rings 3.910" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Iron 1030103 8 AN O-RingProduct Description: Piston Rings Economy 3. 910 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Cast Iron Natural 8 Cylinder From pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies, from cutting edge Digital Diamond Profiled pistons to A Series bearings. They are engine components performance enthusiasts and racers can