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 2514 4L80E / 4L85E

4L80E / 4L85E

125'' higher than stock (this rarely affects header or chassis fitment)

MPD Shutoff Valve

CARB EO# D-76

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 2514 4L80E / 4L85EProduct 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