ACL Bearings 4B1891-010 Connecting Rod Bearing Set Undersize - 010

The ACL Bearings 4B1891-010 is a high-quality connecting rod bearing set designed for classic British Motor Corporation (BMC) engines. This Race Series bearing set provides the durability and precision needed for both restoration and performance applications in vintage British sports cars and sedans.

Key Features:

• Tri-metal construction with hardened steel backing for improved bearing retention and support
• .010" undersize dimension for use with reground crankshafts
• Precision machined to micron tolerances for consistent wall thickness and proper crush
• High-strength overlay plate with optimized thickness for improved fatigue resistance
• Increased eccentricity design compensates for bore distortion at higher RPMs
• No flash plating on backing to maximize heat transfer from bearing surface
• Complete set includes 8 bearing halves for 4 connecting rods

ACL Race Series bearings deliver the quality and performance demanded by engine builders and restorers worldwide. Each bearing is manufactured with advanced metallurgy and precision engineering to ensure reliable fit and consistent oil clearances. Ideal for stock rebuilds or modified applications requiring dependable performance.