NPR American V8 Engine Ring Series Piston Ring Set - 4.065 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder Brian Tooley Racing This is a must for

This is a must for rear end centering after vehicle lowering as well as clearance for running larger tires

should be used as a secondary inspection filter

4 in Center Inlet Outlet

No mixing required

without huge increases in weight

NPR American V8 Engine Ring Series Piston Ring Set - 4.065 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder Brian Tooley Racing This is a must forProduct Description: Piston Rings American V8 Engine Ring Series 4. 065 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