NPR American V8 Engine Ring Series Piston Ring Set - 3.937 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder ST6 FN Carbon ZERO This works well for stock

This works well for stock trucks but for heavy duty use and higher horsepower applications this may be insufficient

1960-1963 Chevrolet Bel Air

5 psi Preset

570" ID that works well with our 950

Vehicle Compatibility: Polaris RZR PRO XP

NPR American V8 Engine Ring Series Piston Ring Set - 3.937 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder ST6 FN Carbon ZERO This works well for stockProduct Description: Piston Rings American V8 Engine Ring Series 3. 937 in Bore 1. 2 x 1. 2 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