NPR American V8 Engine Ring Series Piston Ring Set - 4.020 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 1210-509 weld-on Exhaust Tips are manufactured

weld-on Exhaust Tips are manufactured from 304 Stainless Steel for optimum corrosion resistance

and pockets

but on the dyno NX systems make more horsepower per pound of nitrous than anyone

Designed specifically for EFI

25 in Length x 6

NPR American V8 Engine Ring Series Piston Ring Set - 4.020 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 1210-509 weld-on Exhaust Tips are manufacturedProduct Description: Piston Rings American V8 Engine Ring Series 4. 020 in Bore 1. 5 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