Perf. Piston Ring Set V8 4.065 Bore 1.5x1.5x3.0

The Perf. Piston Ring Set V8 4.065 Bore 1.5x1.5x3.0 from NPR PISTON RINGS is engineered for serious engine builders and mechanics who demand OEM-quality compression and oil control in high-performance V8 applications. These precision ring sets are designed to restore factory specifications or support mild to moderate performance builds where ring groove dimensions match the 4.065-inch bore standard.

The 1.5x1.5x3.0 ring configuration breaks down as follows: two compression rings at 1.5 mm thickness each (top and second ring) and one oil control ring at 3.0 mm, a standard geometry that balances blowby control with minimal friction and oil consumption. NPR's manufacturing process ensures consistent ring gap and side clearance, critical factors that prevent hot spots, reduce ring flutter, and maximize bore wall protection.

Mechanics and engine builders working on small-block and mid-displacement V8 platforms benefit most from this ring set, including classic muscle car restorations, street performance engines, and light-duty truck rebuilds. Proper installation requires attention to detail to ensure optimal performance and longevity.