NPR American V8 Engine Ring Series Piston Ring Set - 4.125 in Bore - 1.2 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder SC-BW-5553BLK The Rotor is injection molded

The Rotor is injection molded from Dupont(R) Rynite

high eccentricity to account for bore distortion and reduced overlay thickness to prevent fatigue

Spacer is used between the spindle arm and the rod end

This system incorporates a 13" length baffled muffler which produces an aggressive sound and features an anti-corrosion protective coating

1996-2000 Chevrolet K3500 5

NPR American V8 Engine Ring Series Piston Ring Set - 4.125 in Bore - 1.2 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder SC-BW-5553BLK The Rotor is injection moldedProduct Description: Piston Rings American V8 Engine Ring Series 4. 125 in Bore 1. 2 x 1. 5 x 3. 0 mm Thick Standard Tension Steel Nitride 8 Cylinder NPR Piston Rings is a world leader in the production of piston rings. A long time supplier for OEM applications, they also produce a line of performance piston rings designed for top tier performance and reliability. With performance piston rings for a wide range of engines, including popular V8's from