Mahle Rings Performance Oil Ring Assy 4.745in x 2.0MM .129in RW GNS NHRA Pro Stock Plain Ring Set

This set includes the oil ring assembly for your performance engine build. Specifically, you're getting a 4.745-inch diameter oil ring with a 2.0mm width and a 0.129-inch rail height, designed for NHRA Pro Stock applications. These are plain ring sets, meaning they don't have special coatings or tensioners, keeping them straightforward for builders who know what they need.

Mahle is a well-known name in engine components, and these rings are built for demanding racing use. The dimensions are precise for a proper seal within the cylinder bore, which is critical for maintaining compression and controlling oil consumption in high-performance engines. When you're putting together a serious engine, the details like ring size and type really matter for overall performance and longevity.