Mahle Rings Performance Oil Ring Assy 4.730in x 2.0MM .129in RW GNS NHRA Pro Stock Plain Ring Set

When you're building a serious racing engine, especially for NHRA Pro Stock applications, the details matter. This Mahle OE oil ring assembly is built for those demanding situations where every component needs to perform at its absolute peak. It's designed to manage oil effectively under extreme conditions, which is critical for engine longevity and consistent power output when you're pushing the limits.

This particular set features a 4.730-inch bore size with a 2.0mm oil ring and a .129-inch groove width, specifically tailored for Pro Stock racing. Mahle is a well-known name in engine components, and this ring set reflects their commitment to performance. The 'GNS' designation often points to specific material or coating treatments that enhance durability and performance in high-stress environments. Getting the oil control right is fundamental to preventing premature wear and maintaining compression, especially in a race engine that sees constant high RPMs and heavy loads.