Perf. Piston Ring Set V8 4.070 Bore 1.5x1.5x3.0

The Performance Piston Ring Set V8 4.070 Bore 1.5x1.5x3.0 from NPR Piston Rings is designed for serious engine builders and automotive enthusiasts who require reliable compression sealing in big-block and stroker V8 applications. This precision ring set is ideal for rebuilding classic muscle engines, restoring high-displacement platforms, or completing custom builds.

Featuring a 1.5mm top ring, 1.5mm second ring, and 3.0mm oil ring stack, this piston ring set balances effective oil control with resistance to ring flutter. The 4.070-inch bore size is tailored for large-displacement V8 engines, ensuring optimal performance across the RPM range. NPR's manufacturing tolerances guarantee proper seating of each ring against the piston groove, which is crucial for preventing micro-welding during high-load operations.

This piston ring set is perfect for engine rebuilds, performance upgrades, and custom V8 applications that demand robust sealing. With its three-piece oil ring design, it effectively manages oil film while maintaining peak pressure sealing throughout the combustion cycle. Engine builders can trust NPR's reputation for quality to deliver consistent performance in their projects.