SKU: NPR20-GNHD4075K8
MPN: 20-GNHD4075K8
The NPR Perf. Piston Ring Set V8 4.075 Bore 1.5x1.5x3.0 is designed for serious engine builders and performance enthusiasts who require reliability in high-output V8 applications. This set is ideal for those rebuilding a stroker engine or refreshing a tired block, ensuring optimal seal integrity and blow-by control.
This three-piece ring set features a 1.5mm top ring, 1.5mm second ring, and a 3.0mm oil ring, providing a proven configuration that balances compression sealing with efficient oil control. The 4.075-inch bore diameter is specifically tailored for applications requiring this size, with ring gaps and wall thickness designed to minimize blow-by and reduce frictional losses.
V8 engine builders, machine shops, and weekend warriors performing in-frame or complete engine rebuilds will find these rings deliver dependable performance across stock, naturally aspirated, and boosted applications. Proper installation requires ring gap filing and top-end clearance verification using precision feeler gauges before final assembly.
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