The ACL 8B663HC-010 is a 0.010in undersized H-Series connecting rod bearing set for Small Block Chevy / GM LS-Series 305-400 engines. It is sized for a rod journal that has been reground to that undersize dimension and finished with ACL's coated bearing surface.
Specifications:
- Type: Connecting Rod Bearing Set
- Series: H-Series
- Size: 0.010in Undersize
- Engine Fitment: Small Block Chevy / GM LS-Series 305-400
- Part Number: 8B663HC-010
FAQ
What size does the ACL 8B663HC-010 fit?
It is 0.010in undersized, for a rod journal that has been reground to that undersize dimension.
What engines is the ACL 8B663HC-010 designed for?
Small Block Chevy and GM LS-Series 305-400 engines.
What series is the ACL 8B663HC-010?
It is part of ACL's H-Series connecting rod bearing lineup.
Does the ACL 8B663HC-010 include extra oil clearance?
No, this is the standard-clearance version of this H-Series rod bearing set.
Is the ACL 8B663HC-010 coated?
Yes, it uses ACL's coated bearing surface.

