Perf. Piston Ring Set V8 4.010 Bore 1.5x1.5x3.0

The Perf. Piston Ring Set V8 4.010 Bore 1.5x1.5x3.0 by NPR PISTON RINGS is designed for high-performance V8 engines that require precision ring sets to maintain optimal compression and minimize blow-by during aggressive driving conditions. This product is ideal for mechanics and engine builders who prioritize reliability in street performance, mild turbo applications, or naturally aspirated builds.

The ring set features a 1.5mm thickness for the top and second rings and a 3.0mm thickness for the oil ring, which is the industry standard for balanced compression sealing and heat rejection in V8 applications. NPR's meticulous material composition and machining tolerances ensure consistent ring gaps across the bore, which is essential for preventing ring flutter at high RPM and maintaining a stable oil film thickness.

Engine builders and restorers will find this piston ring set beneficial for rebuilding small-block engines or refreshing tired engines. The 4.010" bore specification accommodates standard overbore dimensions, making these rings compatible with factory blocks and rebored sleeves. Proper installation of the ring end-gap is crucial for optimal performance, typically set at 0.004" to 0.006" per inch of bore diameter.