SKU: NPR20-GNHD3937K8
MPN: 20-GNHD3937K8
The NPR Performance Piston Ring Set V8 3.937 Bore 1.5x1.5x3.0mm is designed for serious engine builders and high-performance V8 enthusiasts looking to enhance ring seal integrity. This set is ideal for those rebuilding worn engine blocks or upgrading to tighter tolerances for improved compression and oil control.
Engineered for the 3.937-inch bore specification, this piston ring set features a 1.5x1.5x3.0mm ring thickness configuration that optimizes combustion pressure sealing while managing oil film thickness on cylinder walls. The performance-grade materials resist scuffing and premature wear, making them suitable for high-RPM operation and modified engines.
Mechanics and engine builders focusing on performance upgrades will find this NPR ring set essential for applications where enhanced sealing and durability are required. It is particularly beneficial in modified or forced-induction engines where chamber pressure and thermal stress exceed stock specifications.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
