The ACL 8B663HXC-STD is a standard-size, coated H-Series connecting rod bearing set with extra oil clearance for Small Block Chevy 305-400 and GM LS-Series V8 engines.
Specifications:
- Type: Connecting Rod Bearing Set
- Series: H-Series
- Size: Standard, Extra Oil Clearance
- Coating: Coated
- Engine Fitment: Small Block Chevy (305-400) / GM LS-Series
- Part Number: 8B663HXC-STD
FAQ
Which engines does the 8B663HXC-STD fit?
It fits Small Block Chevy V8s in the 305-400 cubic inch range as well as GM LS-Series V8 engines.
What does "Extra Oil Clearance" mean here?
It means the bearings are machined with additional internal clearance beyond standard spec.
Is this bearing set coated?
Yes.

