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ACL Race Series .025mm Oversized Main Bearings

When your engine build requires precise clearance adjustments for a machined crankshaft, the ACL Race Series .025mm oversized main bearings are the professional choice. These bearings are specifically designed for the 4G63 and 4G64 7-bolt engines, including those found in the Lancer Evolution V through IX. They provide the necessary clearance for high-performance applications where standard bearings simply won't suffice.

Performance Engineering

• .025mm oversized for precision-machined journals
• Race-proven tri-metal construction
• Enhanced load capacity for high-boost engines
• Optimized for 4G63/4G64 7-bolt blocks
• Superior wear resistance under extreme conditions

The Race Series from ACL is renowned for its ability to withstand the harsh environments of competitive racing. These bearings feature a hardened steel backing and a specialized overlay that reduces friction while maintaining structural integrity under high RPMs and heavy thermal loads. By using these .025mm oversized bearings, you can ensure that your engine build achieves the exact tolerances required for maximum power and reliability. Don't let improper clearances hold your build back; choose the precision of ACL. For expert technical support and premium parts, visit GGCRACING.