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ACL 4G63/4G64 6-Bolt Standard Main Bearings

Experience unmatched reliability with the ACL standard size main bearing set, specifically engineered for the iconic 6-bolt 4G63 and 4G64 engines. These bearings are the preferred choice for engine builders who demand precision, longevity, and high-performance stability for their 1st Gen DSM or classic Mitsubishi engine projects.

Why Choose ACL Performance Bearings?

• OEM-Plus Quality: Manufactured to exceed standard specifications for improved durability in performance environments.
• High-Load Capacity: Advanced material composition handles the increased stresses of modified engine setups.
• Precision Tolerances: Consistent wall thickness ensures optimal oil clearance across all main journals.
• Friction Reduction: Specialized surface coating minimizes drag and heat generation during high-RPM cycles.

When rebuilding your 6-bolt engine, the quality of your bearings is paramount to the longevity of your crankshaft. This set provides the perfect foundation for a reliable engine, whether you are restoring a classic Dodge Ram 50 or building a high-revving DSM. The robust design ensures that your engine maintains consistent oil pressure, even under the most demanding driving conditions. By choosing ACL, you are investing in the long-term health of your powertrain. Upgrade your build with premium components from GGCRACING.