ACL Bearings 3B1266A-.25 Connecting Rod Bearing Set Undersize - 25mm

ACL Race Series Connecting Rod Bearings bring race-tested durability, precision engineering, and state-of-the-art metallurgy into high-performance engine builds. This .25mm undersize connecting rod bearing set is designed for use with reground crankshafts, providing the proper clearances needed for rebuilt engines.

Key Features:

• Trimetal design with high-strength overlay plate and reduced thickness for improved fatigue resistance
• Hardened steel backs on all rod bearings to improve support of the bearing lining and assist with bearing retention in the housing
• Elimination of flash plating on the back of bearings to improve heat transfer and maximize grip between bearings and housing
• Increased eccentricity to compensate for bore distortion at high RPM and assist in formation of hydrodynamic oil films
• Tight consistent wall tolerances to help maintain consistent clearances
• .25mm undersize for crankshafts that have been ground .25mm undersize

Race Series rod bearings are standard components in race engines that have set records and won championships from Mexico to Bonneville, from sport compact drift racing to NASCAR and NHRA competitions. ACL Rod Bearings are the perfect bearing upgrade when building an engine, whether building a record-breaking dyno crusher or rebuilding a daily driver's engine.