ACL Bearings 5M7299HX-STD H-Series Main Bearing Set for GM LS-Series Engines

Upgrade the bottom end of your GM LS-Series engine with the ACL Bearings 5M7299HX-STD H-Series Main Bearing Set. Designed with extra oil clearance for performance-oriented applications, this standard-size main bearing set supports reliable crankshaft operation and consistent lubrication under demanding conditions. The 120-degree groove design helps provide effective oil distribution while maintaining the fit and function expected from a quality replacement bearing set.
The ACL Bearings H-Series main bearings are engineered for enthusiasts, builders, and professional engine applications that require dependable internal components. Standard sizing makes this set suitable for crankshafts prepared to standard main journal specifications, while the extra oil clearance can help accommodate performance builds and operating conditions that benefit from increased oil flow. Always verify crankshaft measurements, bearing clearances, and engine compatibility before installation.
This kit is identified by part number 5M7299HX-STD and is intended for GM LS-Series engine applications. It provides a practical solution for replacing worn or damaged main bearings during an engine rebuild, refresh, or performance upgrade. Proper installation procedures, accurate measurements, and manufacturer-recommended assembly lubricant should be used to help achieve long service life and dependable engine operation. The set is not air restricted and does not require truck freight shipping.

Features:

• Application: GM LS-Series engines

• Bearing Series: ACL Bearings H-Series

• Part Number: 5M7299HX-STD

• Bearing Type: Main bearing set

• Size: Standard

• Oil Clearance: Extra oil clearance

• Groove Design: 120-degree groove

• Kit Configuration: Complete main bearing set

• Shipping Classification: Not air restricted

• Freight Classification: Truck freight not required