NPR American V8 Engine Ring Series Piston Ring Set - 4.065 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder Cooling & Heating Deals Four-into-two-into-one configuration combined with "stepped"

Four-into-two-into-one configuration combined with "stepped" primary tubes delivers increased torque

Handle bolts to stock Hurst shifter

Brake Fluid

Bolt for ALL26137 Centerbolt Valve Cover

and oval track

NPR American V8 Engine Ring Series Piston Ring Set - 4.065 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder Cooling & Heating Deals Four-into-two-into-one configuration combined with "stepped"Product Description: Piston Rings American V8 Engine Ring Series 4. 065 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