ACL Bearings 4B610P-30 Performance Connecting Rod Bearing Set Undersize - 030

The ACL Bearings 4B610P-30 is a high-performance connecting rod bearing set designed for engine builders and enthusiasts who demand superior quality and reliability. This precision-engineered bearing set features a .030 inch (.75mm) undersize to accommodate reground crankshafts, making it ideal for engine rebuilds and performance applications.

Key Features:

• High-strength aluminum-silicon bearing material for exceptional load capacity and durability
• .030 inch undersize for use with reground crankshafts
• Precision-machined to exacting tolerances for optimal oil clearance and performance
• Enhanced heat dissipation properties through improved thermal transfer design
• Improved bearing retention from higher radial contact pressure
• Full grooved upper shells with matching partial grooves in lower shells for superior oil distribution
• Designed to accommodate larger fillet radii on performance crankshafts

Specifications:

• Shaft diameter: 2.0000-2.0005 inches (50.800-50.813mm)
• Housing bore: 2.1247-2.1252 inches (53.967-53.980mm)
• Bearing length: Approximately 0.742 inches (18.84mm)
• Wall thickness: Approximately 0.0618 inches (1.570mm)

ACL bearings are trusted by professional engine builders worldwide for tuning and engine upgrades where superior quality and higher bearing capacity than standard bearings is required. Each bearing set is manufactured with improvements in material composition, dynamic thickness control, heat conduction, and oil groove design that make ACL one of the leading bearing manufacturers in the performance industry.