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 Coil-Over Adapter Subframe connectors are needed if

Subframe connectors are needed if using a roll bar or roll cage to tie everything together

or 4-speed Transmissions

Fits virtually all GM V8 and V6 blocks

These containers are direct replacements for ATL Saver Cell

1-5/8 in Tall

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 Coil-Over Adapter Subframe connectors are needed ifProduct 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