ACL Bearings 8B663HC-010 H-Series Coated Connecting Rod Bearing Set, 0.010 in Undersize, Small Block Chevy and GM LS

The ACL Bearings 8B663HC-010 H-Series connecting rod bearing set is designed for Small Block Chevy and GM LS-series engine applications requiring a 0.010-inch undersize bearing. This coated rod bearing set, also identified as the Rod Bearing Set Coated SBC 305-400, supports precise engine assembly and dependable performance in demanding street, performance, and racing environments.
The H-Series design features a high-strength construction engineered to withstand increased loads and elevated operating conditions. The bearing coating promotes durable surface protection and smooth interaction between the connecting rod and crankshaft journal when proper installation, clearances, lubrication, and crankshaft preparation are maintained. The 0.010-inch undersize specification is intended for crankshafts machined to accommodate this bearing size, making accurate measurement essential before installation.
ACL Bearings is recognized for producing performance-oriented engine bearings with application-specific designs and manufacturing standards. This set is a practical choice for rebuilding or upgrading compatible Small Block Chevy and GM LS engines, including applicable 305-400 configurations. Verify the engine family, crankshaft journal size, connecting rod specifications, and required bearing clearance before ordering or assembly. The kit is supplied for connecting rod bearing replacement and is not intended to substitute for professional engine machining or measurement procedures.

Features:

• Brand: ACL Bearings

• Part Number: 8B663HC-010

• Bearing Type: H-Series connecting rod bearing

• Bearing Size: 0.010-inch undersize

• Construction: Coated bearing surface for enhanced durability

• Application: Small Block Chevy and compatible GM LS-series engines

• Engine Fitment: Applicable SBC 305-400 configurations

• Use: Engine rebuilding, performance applications, and replacement assemblies