ACL Bearings 5M7298H-10 Race Series Main Bearing Set .010 Undersize for Chevy LS

The ACL Bearings 5M7298H-10 is a high-performance Race Series main bearing set engineered specifically for Chevrolet LS engines requiring .010 inch undersize crankshaft clearance. This 5-piece bearing set features ACL's proven tri-metal copper alloy construction designed to withstand the extreme demands of competition engines.

Key Features:

• Tri-metal construction with copper alloy backing for superior strength and seizure resistance
• .010 inch crankshaft undersize specification for precision machined cranks
• 270-degree (3/4) groove design for optimal oil distribution
• Increased eccentricity improves shape adaptation to compensate for bore distortion at high RPM
• Manufactured to micron-level tolerances ensuring consistent wall thickness and proper crush
• Enhanced bearing retention through higher radial contact pressure
• No flash plating applied to maximize heat transfer efficiency
• Enlarged chamfers accommodate larger fillet radii on performance crankshafts
• Made in Australia

ACL Race Series bearings are trusted by engine builders worldwide and have proven themselves in championship-winning engines across NASCAR, NHRA, IHRA, and various forms of motorsports competition. The precise engineering and quality control ensure reliable fitment and consistent clearances critical for high-performance engine builds.