MAIN BEARING

Elevate your engine's performance with the ACL Race Series Performance Engine Bearings, designed specifically for Chevrolet, GMC, Excalibur, and ISO vehicles from 1990 to 2000. These main bearings are a crucial upgrade for high-performance builds, ensuring reliability and durability under demanding conditions.

• Tri-metal Construction: Made from a copper-lead alloy, these bearings provide excellent wear resistance and longevity, ensuring your engine runs smoothly.
• Optimized for Performance: Each set of 5 main bearings is engineered to handle increased loads, making them perfect for racing and high-performance applications.
• 1/2 Groove Design: This groove style enhances oil flow, reducing friction and improving lubrication for better engine efficiency.
• Stock Thrust Bearing Oversize: Designed to fit standard dimensions, these bearings are easy to install, maintaining your vehicle's original specifications.
• Extra Clearance: With a crankshaft undersize of 0.001 in., they provide the necessary clearance for enhanced performance without sacrificing reliability.

Upgrade your engine with ACL Race Series main bearings for unmatched performance and peace of mind on the track.