ACL Bearings 4B1146H-.025 Race Series Connecting Rod Bearings

The ACL Race Series connecting rod bearings are engineered for high-performance racing applications where extreme loads and temperatures demand superior bearing technology. This undersized bearing set (-.025" undersize) is designed for crankshaft journals that have been machined to restore proper clearances or to achieve specific performance tolerances.

Key Features:

• Race Series construction with enhanced fatigue resistance for competition use
• -.025" undersize for machined crankshaft journals
• High-strength tri-metal construction with optimized material layers
• Engineered bearing profile for improved oil retention and load distribution
• Manufactured to strict tolerances for consistent performance
• Suitable for naturally aspirated and forced induction applications

ACL Race Series bearings feature advanced metallurgy and precision manufacturing that provides the durability and reliability required in demanding racing environments. The undersize dimension allows engine builders to restore worn journals or achieve optimal bearing clearances for specific performance goals.