ACL Bearings 8B634HC-001 Race Series Connecting Rod Bearings, 0.001 in Undersize, Coated, Small Block Ford

ACL Bearings 8B634HC-001 Race Series connecting rod bearings are designed for high-performance Small Block Ford engines, including 289 and 302 applications. This coated bearing set features a 0.001-inch undersize fit to support crankshaft and engine rebuilds requiring precise bearing clearance. The rod bearing design is intended for performance-focused street, racing, and competition engine builds where dependable load handling and consistent fit are important.
The Race Series construction provides a durable bearing surface engineered to help manage the demanding operating conditions associated with high-RPM and high-output engines. The coating helps support wear resistance and reliable lubrication performance, while the precise manufacturing of each bearing helps promote proper alignment and clearance when installed with a correctly prepared crankshaft and connecting rods. Always verify crankshaft journal measurements, housing bore condition, and manufacturer specifications before installation.
This ACL Bearings connecting rod bearing set is an appropriate replacement or upgrade component for compatible Small Block Ford 289 and 302 engines. The 0.001-inch undersize specification should be matched to the crankshaft journal size and the final bearing clearance established during engine assembly. Professional installation and accurate measurement are recommended to help ensure proper performance and service life. The set is supplied for the stated application and does not require truck freight or special air shipment handling.

Features:

• Brand: ACL Bearings

• Part Number: 8B634HC-001

• Application: Small Block Ford 289 and 302 engines

• Bearing Type: Connecting rod bearing set

• Series: Race Series

• Size: 0.001-inch undersize

• Surface: Coated for enhanced wear and lubrication support

• Use: High-performance street, racing, and competition engine builds

• Installation: Verify crankshaft journal measurements and bearing clearance before assembly