ACL Bearings 4B1383P-STD Connecting Rod Bearing Set Standard Size

The ACL Bearings 4B1383P-STD is a standard size connecting rod bearing set designed for high-performance and racing applications. ACL Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world. This set features ACL's advanced trimetal construction engineered to withstand the demanding conditions of performance builds and racing environments.

Key Features:

• 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
• Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and 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
• ACL Race Series performance engine bearings are manufactured to exacting tolerances with particular attention paid to wall thickness accuracy. This ensures reliable fit and helps 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. Standard size bearings are designed for use with standard journal crankshafts. Always verify proper oil clearances during installation and follow manufacturer torque specifications for optimal performance and longevity.