Perf. Piston Ring Set V8 4.130 Bore 1.2x1.2x3.0

The Perf. Piston Ring Set V8 4.130 Bore 1.2x1.2x3.0 from NPR Piston Rings is designed for serious engine builders and performance mechanics who require precision-fit compression and oil control in high-displacement V8 applications. This ring set is particularly suited for large-bore stroker and modified engines where standard OEM rings may not meet performance demands.

The 4.130-inch bore specification is tailored for oversized pistons typical in bored-and-stroked V8 builds, while the 1.2x1.2x3.0 ring package (top, second, and oil ring thicknesses) strikes an optimal balance between sealing efficiency and reciprocating mass. Constructed from performance-grade materials, these piston rings are engineered to withstand thermal cycling and detonation, helping maintain tight piston-to-wall clearances even under high boost or nitrous oxide applications.

This ring set is ideal for mechanics and engine builders working with custom pistons in big-block Chevrolet, Ford, or Mopar V8s, as well as those involved in fuel-injected or carbureted performance builds. Proper installation and tuning are essential to maximize the benefits of these premium piston rings, ensuring optimal engine performance and longevity.