ACL Bearings 1B743HD-01 Race Series Rod Bearing Oversize - 001

The ACL Bearings 1B743HD-01 is a high-performance Race Series connecting rod bearing designed for demanding racing and performance engine applications. This single rod bearing shell features .001" oversize dimensions and includes a location dowel hole for precise installation alignment.

Race Series Performance Features:

• Trimetal construction with lead, tin, copper, and nickel alloy for superior strength and seizure resistance
• Hardened steel backing on rod bearing improves support of bearing lining and assists with bearing retention
• High-strength overlay plate with reduced thickness for improved fatigue properties
• Increased crush factor for improved bearing retention in the housing
• No flash plating on bearing back improves heat transfer and maximizes grip between bearing and housing
• Increased eccentricity compensates for bore distortion at high RPM and assists in formation of hydrodynamic oil films
• Tight consistent wall tolerances help maintain precise oil clearances
• Enlarged inner diameter chamfers accommodate large fillet radius on performance crankshafts

ACL Race Series bearings are engineered to withstand high RPM conditions and extreme loads found in motorsports applications. The unique combination of advanced metallurgy, precision engineering, and race-proven design makes these bearings a trusted choice for championship-winning race engines across NASCAR, NHRA, IHRA, and sport compact racing.

Note: This is sold as a single bearing shell. Complete rod bearing sets include multiple shells and are sold separately.