MAIN BEARING

Upgrade your engine's performance with the ACL Race Series Performance Engine Bearings, designed specifically for high-demand applications in Chevrolet, GMC, Excalibur, and ISO vehicles from 1990 to 2000.

• Performance-Oriented Design: These main bearings are crafted for racing enthusiasts, ensuring optimal performance under pressure.
• Durable Tri-Metal Construction: Made from a copper-lead alloy, these bearings offer exceptional strength and resistance to wear, enhancing engine longevity.
• Precision Fit: With a 0.001 in. crankshaft undersize and a 1/2 groove style, they provide a reliable fit for your engine, minimizing oil leakage and maximizing efficiency.
• Complete Set: Sold as a set of 5, these bearings are designed to meet the needs of your engine rebuild or performance upgrade.
• Upper Groove Location: The strategically placed upper groove allows for better lubrication and heat dissipation, ensuring your engine runs smoothly.

These ACL Race Series main bearings are engineered for performance, making them an essential addition to your engine rebuild. Upgrade your ride today!