Speed Pro Premium Piston Rings 99.00 mm Bore 1.50 x 1.50 x 3.00 mm Thick Standard Tension - Moly 91929939 Developed by one of the

Developed by one of the top NASCAR engine builders

Available with mounting holes for a standard dial-in board bracket or ALL23293 with suction cups and hook/loop tape

We offer premium forged 4340 crankshafts and H-Beam rods for serious performance applications

Spring Steel

ProTuner 525

Speed Pro Premium Piston Rings 99.00 mm Bore 1.50 x 1.50 x 3.00 mm Thick Standard Tension - Moly 91929939 Developed by one of theProduct Description: Piston Rings Performance 3. 897 in Bore Drop In 1. 5 x 1. 5 x 3. 0 mm Thick Standard Tension Steel Moly 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