SKU: NPR20-GNHM4040K8
MPN: 20-GNHM4040K8
The NPR Performance Piston Ring Set V8 4.040 Bore 1.2x1.5x3.0 is designed for high-performance V8 engines that require precise ring gap and tension control. This set is perfect for serious engine builders and performance enthusiasts who need reliable compression sealing and oil management in modified and racing applications.
Featuring a 1.2mm top ring, 1.5mm second ring, and 3.0mm oil control ring geometry, these NPR rings are specifically engineered for 4.040-inch bore applications. The precision-engineered gap and tension profiles ensure consistent sealing across the combustion cycle, minimizing blowby and controlling oil consumption, which is crucial for high-revving or high-boost platforms.
Ideal for V8 engine builders, machine shops, and performance shops, this ring set is compatible with many popular big-block and small-block variants. Proper installation requires ring end-gap verification and honing to specification, ensuring optimal performance and longevity.
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.
