Perf. Piston Ring Set 4.070 Bore 1.0 1.0 2.0mm

The MAHLE PISTONS Performance Piston Ring Set 4.070 Bore 1.0 x 1.0 x 2.0mm is a precision-engineered ring kit designed for high-performance engine builds requiring exact bore dimensions and controlled gas sealing. This file-fit ring set is essential for achieving optimal compression and blow-by control in 8-cylinder applications where standard rings may not meet performance demands.

The ring set features a traditional thickness specification of 1.0 x 1.0 x 2.0mm, ensuring reliable sealing across a wide RPM range typical of street and light competition engines. Each ring requires final honing to match the exact bore finish of your block, a critical step that ensures optimal sealing and minimizes wear. The steel construction enhances durability while maintaining effective ring-to-bore contact.

This ring kit is specifically designed for 8-cylinder engines with a 4.070-inch bore diameter, making it ideal for modern performance builds. Buyers engaged in block preparation, overbore machining, or engine rebuilds with upgraded pistons will find this MAHLE Performance series ring set meets the sealing and durability requirements for mid-range power applications.