Speed Pro Premium Piston Rings 4.120" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 1950595 Your S197 needs to perform

Your S197 needs to perform

Developed in conjunction with noted Ford drag racer Billy Glidden

The Centerforce SST includes a billet steel flywheel

525 lb/in front

1957-1957 Oldsmobile

Speed Pro Premium Piston Rings 4.120" Bore 5/64 x 5/64 x 3/16" Thick Standard Tension - Moly 1950595 Your S197 needs to performProduct Description: Piston Rings Performance 4. 120 in Bore Drop In 5 64 x 5 64 x 3 16 in 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