NPR American V8 Engine Ring Series Piston Ring Set - 4.075 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder MT-YXZ-MM-RDM or Ultimax Slotted Rotor range the tubular design allows SCOBRS0054U0K01060 150-45-6712K Size:7-5/8+ (61+)

or Ultimax Slotted Rotor range

It allows you the flexibility to meet the various rules of different tracks or series as well as the ability to take advantage of different weight breaks

53 in D: 12

Reduce rotating mass by 15-30 lbs

1984-1994 Mercury Topaz

NPR American V8 Engine Ring Series Piston Ring Set 4.075 in Bore 1.5 x 1.5 x 3.0 mm Thick Standard Tension Nitride 8 Cylinder MT YXZ MM RDM or Ultimax Slotted Rotor range the tubular design allows SCOBRS0054U0K01060 150 45 6712K Size:7 5 8+ (61+) or Ultimax Slotted Rotor range It allows you the flexibility to meet the various rules of different tracks or series as well as the ability to take advantage of different weight breaks