BMW N63 S63 High Performance Main Bearing Set ZZII or even failure at high

or even failure at high RPM

With superior spring rates compared to stock springs

5psiBoost Pressure: 20psiRising Rate Pressure Regulator

The original BMW bearings have too little clearance

backed by 55 years of high-performance piston engineering experience

BMW N63 S63 High Performance Main Bearing Set ZZII or even failure at high5150 High Performance Main Bearings for BMW N63 and S63 V8 engines are engineered to meet the rigorous demands of high horsepower builds. These bearings feature Calico's advanced coating technology, which reduces friction, increases durability, and helps the engine generate more power by minimizing wear. Unlike OEM bearings, 5150's bearings are designed to resist "spinning" under extreme stress, making them ideal for forced induction and racing