ACL Bearings 4B1276P-STD Performance Connecting Rod Bearing Set Standard Size

The ACL Bearings 4B1276P-STD is a high-performance connecting rod bearing set designed for serious engine builders and motorsports applications. ACL Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world. This standard size bearing set delivers the durability and precision required for demanding performance applications.

Advanced Race-Proven Design:

• High strength overlay plate with reduced thickness for improved fatigue properties
• Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing
• Increased crush for improved bearing retention
• Elimination of flash plating on the back of the bearings to improve heat transfer through the bearing sand to maximize the grip between the bearings and its housing
• Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films
• Tight consistent wall tolerances to help you maintain consistent clearances

The unique combination of design, metallurgy and engineering provides Race Series performance bearings with the endurance and capability to perform where others cannot. Whether you're building a street performance engine or a full race application, ACL bearings deliver the reliability and strength you need under high-RPM conditions. The tri-metal construction with hardened steel backing ensures maximum durability and heat dissipation during extreme operating conditions.