NPR American V8 Engine Ring Series Piston Ring Set - 4.120 in Bore - 1.2 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 55000029290 3-3/8 in Diameter

3-3/8 in Diameter

4 AN Male x 4 AN Male x 1/8 in NPT Male

Provides 2200 to 2400 Stall behind Small Blocks and 2400 to 2600 Stall behind Big Blocks

2003-2008 GMC W4500 Forward

Since 2000 it has been the only oil used by Joe Gibbs Racing as well as many other top level racing organizations

NPR American V8 Engine Ring Series Piston Ring Set - 4.120 in Bore - 1.2 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 55000029290 3-3/8 in DiameterProduct Description: Piston Rings American V8 Engine Ring Series 4. 120 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