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ACL Race Series Main Bearings for GM LS Engines

When your GM LS crankshaft requires a .10mm (.010") undersize, the ACL Race Series Main Bearing Set is the professional choice for your build. Designed for Gen III and Gen IV LS engines, these bearings are built to handle the heat and stress of high-performance applications. Featuring a 270-degree oil groove, they ensure consistent oil pressure and lubrication to your main journals.

Why Choose ACL Race Series?

• High-Load Durability: Constructed with advanced materials to resist fatigue in high-RPM environments.
• Precision Engineering: .10mm undersize provides the exact clearance needed for machined crankshafts.
• Enhanced Oil Flow: The 270-degree groove design optimizes oil distribution throughout the engine.
• Wide Vehicle Fitment: Compatible with various GM trucks, SUVs, and performance cars using LS-based engines.

Building a high-performance engine requires components that won't fail under pressure. These ACL main bearings are designed to provide the stability and protection your engine's rotating assembly needs to perform at its best. Whether you are restoring a classic truck or building a high-horsepower street machine, you can count on these bearings for reliability and performance. Upgrade your engine today with quality parts from GGCRACING.