NPR American V8 Engine Ring Series Piston Ring Set - 4.080 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder ATM9792 base and a 1/2" spacer

base and a 1/2" spacer with a built-in O-ring for a positive seal

Clockwise Rotation

you'll find Timken at work

1977-1977 Oldsmobile Omega

Woven Fiberglass

NPR American V8 Engine Ring Series Piston Ring Set - 4.080 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder ATM9792 base and a 1/2" spacerProduct Description: Piston Rings American V8 Engine Ring Series 4. 080 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