NPR American V8 Engine Ring Series Piston Ring Set - 4.000 in Bore - 1.2 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 17045-16 and is specifically formulated to

and is specifically formulated to exceed the demands of highly stressed motorcycle engines and transmissions

Performer Pontiac heads utilize a D-Port exhaust port configuration for use with standard D-port exhaust systems

Can be trimmed down to the height you require

Everything you will need is included

The #1 Body Choice For Top Dirt Racers

NPR American V8 Engine Ring Series Piston Ring Set - 4.000 in Bore - 1.2 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 17045-16 and is specifically formulated toProduct Description: Piston Rings American V8 Engine Ring Series 4. 000 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