ACL Main Bearings for Nissan RB25/RB30 0.025mm Oversized Race Series

ACL Main Bearings for Nissan RB25/RB30 — 0.025mm Oversized Race Series ACL Race Series main bearings are engineered for high-performance Nissan RB25 and RB30 engines. These 0.025mm oversized bearings deliver precise clearance control, improved load capacity and accelerated durability for motorsport and high-power street builds. Perfect fit: Direct replacement for RB25 and RB30 crank journals with 0.025mm oversize for reground cranks. Race-grade materials: Multi-layer bearing construction for superior fatigue resistance and seizure protection under high loads. Enhanced oiling: Optimized oil grooves and surface finish for consistent hydrodynamic film and reduced friction. Durability: Improved wear life for high RPM, boosted and high-horsepower applications. Quality assurance: Manufactured to strict tolerances and 100% inspected to meet ACL performance standards. Choose ACL Main Bearings to protect your crankshaft, maintain precise clearances, and support aggressive tuning goals. Ideal for engine rebuilds where reliability and maximum performance are required.