NPR American V8 Engine Ring Series Piston Ring Set - 4.135 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder DTR1035 3" Down Pipe-Carb EO #

3" Down Pipe-Carb EO # D-763

6 Modular 3-valve and 5

GM B-Body 1959-70

medium and hard

Spring steel support fits under the nose panel for structural support and eases mounting of nose valances

NPR American V8 Engine Ring Series Piston Ring Set - 4.135 in Bore - 1.2 x 1.2 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder DTR1035 3" Down Pipe-Carb EO #Product Description: Piston Rings American V8 Engine Ring Series 4. 135 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