ACL Bearings 4B2681-STD Standard Size Connecting Rod Bearing Set

The ACL Bearings 4B2681-STD is a standard size connecting rod bearing set engineered for performance and durability in demanding engine applications. ACL bearings are manufactured using advanced tri-metal construction that provides superior load-carrying capacity and wear resistance compared to conventional bearing materials.

Key Features:

• Tri-metal construction with hardened steel backing for improved bearing support and retention
• High-strength overlay plate with optimized thickness for enhanced fatigue resistance
• Increased crush design ensures secure bearing retention in the housing
• Elimination of flash plating on bearing backs improves heat transfer and maximizes grip
• Tight wall thickness tolerances help maintain consistent oil clearances
• Standard size for use with unground crankshaft journals

ACL connecting rod bearings feature increased eccentricity to compensate for bore distortion at high RPM and assist in the formation of hydrodynamic oil films. The hardened steel backing provides exceptional support for the bearing lining while improving retention in the connecting rod housing. These bearings are designed to withstand elevated operating temperatures and higher RPM conditions found in both performance street and racing applications.