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ACL 4G63/4G64 7-Bolt 0.25mm Oversized Main Bearings

For 7-bolt 4G63 and 4G64 engines that have undergone significant crankshaft machining, the ACL 0.25mm oversized main bearing set provides the necessary tolerance adjustment for a perfect engine build. These bearings are designed for 2nd Gen DSM and Mitsubishi Evolution owners who demand high-performance reliability and precision engineering in every component of their engine.

Technical Specifications

• Oversized Precision: Specifically engineered for 0.25mm oversized crankshaft journals.
• Robust Construction: Durable multi-layer design to withstand high-boost and high-RPM environments.
• Consistent Lubrication: Optimized oil distribution channels to prevent hot spots and bearing seizure.
• Wear Resistance: Advanced surface treatments reduce friction and extend the life of your engine internals.

A successful engine build relies on the quality of the internal components. These ACL bearings are manufactured to the highest standards, ensuring that your 7-bolt engine can handle the increased power and torque of your modifications. By providing a precise fit for machined crankshafts, these bearings help maintain the integrity of your oil system and protect your engine from premature failure. Whether you are building a daily driver or a dedicated track car, these bearings are an essential upgrade. Find the best performance parts for your Mitsubishi at GGCRACING.