ACL Bearings 8B663HXD-STD H-Series Connecting Rod Bearing Set, Standard, Extra Oil Clearance for Chevy and GM LS-Series

The ACL Bearings 8B663HXD-STD connecting rod bearing set is designed for Small Block Chevy and GM LS-Series engines requiring dependable performance and extra oil clearance. This H-Series bearing set is manufactured for demanding street, performance, and competition applications where accurate fitment and reliable oil control are essential. The standard size provides a precise replacement option for crankshafts that remain within factory specifications.
The extra oil clearance design supports improved lubrication around the connecting rod journal, helping accommodate performance-oriented engine builds and higher operating loads. Doweled construction helps promote proper bearing alignment during installation, while the H-Series design is engineered to provide durable service under demanding conditions. This kit is a practical choice for engine builders, professional technicians, and enthusiasts completing a rebuild or performance upgrade.
Use the ACL Bearings 8B663HXD-STD bearing set only after verifying crankshaft journal condition, bearing housing specifications, and manufacturer-recommended clearances. Proper cleaning, measurement, lubrication, and installation procedures are important for achieving reliable engine performance. The set is supplied for applicable Small Block Chevy and GM LS-Series connecting rod applications and is not intended to compensate for journals requiring an undersize bearing.
Feature: H-Series connecting rod bearing set for Small Block Chevy and GM LS-Series engines.
Feature: Standard bearing size for crankshafts meeting applicable factory specifications.
Feature: Extra oil clearance design supports enhanced lubrication for performance applications.
Feature: Doweled construction helps maintain proper bearing alignment during installation.
Feature: Suitable for engine rebuilds, street performance vehicles, and demanding applications.

Features:

• H-Series connecting rod bearing set for Small Block Chevy and GM LS-Series engines

• Standard bearing size for crankshafts meeting applicable factory specifications

• Extra oil clearance design supports enhanced lubrication for performance applications

• Doweled construction helps maintain proper bearing alignment during installation

• Suitable for engine rebuilds, street performance vehicles, and demanding applications