Piston Ring Set 4.145 Classic 0.43 0.43 3.0mm

The Piston Ring Set 4.145 Classic 0.43 0.43 3.0mm by TOTAL SEAL is designed for serious engine builders and performance enthusiasts who require precision-fit ring sets for high-displacement or stroker builds. This ring package is essential for controlling blow-by, maintaining compression, and regulating oil consumption across the RPM range.

TOTAL SEAL's Classic ring design features a 4.145-inch bore diameter suitable for mid-to-large displacement applications, with a compression ring groove width of 0.43 inches and an oil ring thickness of 3.0 millimeters. This geometry optimizes ring seal and tension for effective blow-by control while minimizing friction loss. The staggered ring gaps and cast iron construction help reduce carbon tracking and extend ring life under load.

Engine builders working with 4.145-inch bore blocks—common in big-block Chevys, Fords, and other American V-8 platforms—will find this set indispensable for both naturally aspirated and forced-induction applications. Proper ring fit to your specific piston groove dimensions is crucial for optimal performance and longevity.