ACL Bearings 3B1012-030 Connecting Rod Bearing Set Undersize - 0.030

The ACL Bearings 3B1012-030 is a high-performance connecting rod bearing set designed for precision engine builds requiring 0.030" undersize bearings for reground crankshaft journals. This set features ACL's proven trimetal construction, combining advanced metallurgy with race-proven engineering to deliver reliable performance in demanding applications.

Key Features:

• Trimetal bearing design with high-strength overlay for superior fatigue resistance
• 0.030" undersize specification for use with reground crankshaft journals
• Hardened steel backing provides enhanced support and bearing retention
• Precision-engineered oil clearances for optimal lubrication
• Suitable for street performance, racing, and engine rebuild applications
• Manufactured to strict tolerances for consistent quality and fit

ACL Bearings are recognized throughout the motorsports industry for their durability and performance. Whether you're rebuilding a daily driver or building a high-RPM competition engine, these connecting rod bearings provide the reliability needed for demanding conditions. The 0.030" undersize dimension accommodates crankshafts that have been machined to restore journal dimensions, making them ideal for engine rebuilds and performance upgrades.