ACL Bearings 4B610P-40 Performance Connecting Rod Bearing Set

The ACL Bearings 4B610P-40 is a performance connecting rod bearing set designed for high-performance engine builds and racing applications. This set features ACL's advanced trimetal construction with a hardened steel backing for superior strength and bearing retention under extreme operating conditions.

Key Features:

• Trimetal design with high-strength overlay plate and reduced thickness for improved fatigue resistance
• Hardened steel backs to enhance bearing support and prevent bearing spin in high-RPM applications
• Increased eccentricity to compensate for bore distortion during high-speed operation
• No flash plating on bearing backs for improved heat transfer and maximum grip in the housing
• Precision-engineered to meet strict dimensional tolerances for consistent oil clearances
• 0.040" (1.0mm) undersize for use with reground crankshafts

ACL Race Series bearings are trusted by professional engine builders and have proven their reliability in demanding motorsports applications ranging from sport compact racing to NASCAR competition. Each bearing set is manufactured with ACL's proprietary metallurgy and engineering processes to deliver exceptional durability where standard bearings cannot perform.