ACL Bearings 8B1663H-001 Race Series Connecting Rod Bearing - Set

The ACL Bearings 8B1663H-001 is a high-performance connecting rod bearing set designed for custom performance applications with 1.889" journal diameter and 0.792" width. The -001 suffix denotes 0.001" extra oil clearance for precise engine building requirements.

Race Series Performance Features:

• Increased eccentricity improves shape adaptation to compensate for bore distortion at high-speed operation
• Assists in the formation of hydrodynamic oil film for superior lubrication
• Accommodates larger fillet radii on performance crankshafts
• High strength overlay plate with reduced thickness and hardened steel backs
• Designed to withstand higher RPM conditions

ACL Race Series rod bearings are standard components in race engines that have set records and won championships from Mexico to Bonneville, trusted in applications from sport compact drift racing to NASCAR and NHRA competitions. The unique combination of design, metallurgy and engineering provides Race Series bearings with the endurance and capability to perform where others cannot.