ACL Bearings 4B960P-20 Performance Connecting Rod Bearing Set Undersize

The ACL Bearings 4B960P-20 is a high-performance connecting rod bearing set designed for demanding automotive applications. This undersize bearing set features ACL's advanced tri-metal construction with a hardened steel backing, engineered to deliver superior durability and reliability in both street and racing engines.

Key Features:

• Tri-metal design with high-strength overlay plate and reduced thickness for improved fatigue resistance
• Hardened steel backs improve bearing lining support and assist with retention in the housing
• Enhanced heat transfer through elimination of flash plating on bearing backs
• Increased eccentricity compensates for bore distortion at high RPM and assists in hydrodynamic oil film formation
• Tight, consistent wall tolerances help maintain precise clearances
• 0.020" undersize for crankshaft journal refinishing applications

ACL Race Series bearings are trusted by engine builders worldwide and have proven themselves in championship-winning engines across multiple motorsports disciplines. These bearings combine precision engineering with advanced metallurgy to deliver performance where standard bearings cannot.