NPR American V8 Engine Ring Series Piston Ring Set - 3.937 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 1000504 Large 48mm bore for maximum

Large 48mm bore for maximum control

wide HD low roller clutch

Itas patented blade design allows for greater efficiency

2008 Ford Expedition

NPR American V8 Engine Ring Series Piston Ring Set - 3.937 in Bore - 1.5 x 1.5 x 3.0 mm Thick - Standard Tension - Nitride - 8-Cylinder 1000504 Large 48mm bore for maximumProduct Description: Piston Rings American V8 Engine Ring Series 3. 937 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