SKU: NPR20-GNHM4120K8
MPN: 20-GNHM4120K8
The NPR Performance Piston Ring Set V8 4.120 Bore 1.2x1.5x3.0 is designed for serious engine builders and mechanics who require precision in high-performance V8 applications. This ring set is essential for rebuilding stroker motors, restoring classic muscle cars, or optimizing modern performance engines, providing the critical seal integrity necessary for any engine assembly.
The 4.120-inch bore dimension is tailored for popular big-block and modified small-block platforms, ensuring improved compression, reduced blow-by, and extended ring life. The ring package dimensions of 1.2 inches for the top ring, 1.5 inches for the second ring, and 3.0 inches for the oil ring deliver optimized pressure balance and oil control, allowing for sustained RPM operations while minimizing friction and maximizing sealing efficiency.
This piston ring set is ideal for engine rebuilds and performance modifications, particularly in applications requiring bore-specific fitment where oversized standard rings are inadequate. Proper installation necessitates careful honing to ensure cylinder wall compatibility, making this product a valuable component for any high-performance engine project.
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