ACL Race Series Engine Conrod Bearings Standard Size (4B1185H-STD) – For Mitsubishi 4G63/4G64

Heavy-Duty Bearing Protection for Your Forced-Induction Mitsubishi Build

When you are pushing high levels of boost through a Mitsubishi engine, your big end bearings face extreme punishment. The ACL Race Series 4B1185H-STD conrod bearing set is engineered to handle the staggering cylinder pressures, heavy loads, and punishing RPMs of motorsport applications. Perfect for performance shops and DIY builders across New Zealand pushing their Evos to the limit.

Why Choose ACL Race Series Bearings?

• Trimetal Performance: Features a high-strength steel back layered with a copper-lead-tin intermediate liner and a lead-tin-copper overlay for maximum load capacity.
• Increased Crush & Eccentricity: Improves bearing retention inside the rod housing and optimizes oil film formation at high crankshaft speeds.
• Enlarged ID Chamfers: Accommodates larger fillet radii found on high-performance aftermarket crankshafts.
• Standard (STD) Size: Intended for precision engine assemblies where the crankshaft rod journals remain at factory tolerances.

???? Vehicle & Engine Compatibility

This kit fits a wide range of iconic 7-Bolt Mitsubishi performance engines built between 1992 and 2007:

• Engine Codes: 2.0L / 2.4L 4G63, 4G63T (7-Bolt), 4G64, 4G69
• Mitsubishi Lancer Evolution: EVO I, EVO II, EVO III, EVO IV, EVO V, EVO VI, EVO VII, EVO VIII, EVO IX
• Other Models: 1992.5–1999 Mitsubishi Eclipse GST/GSX, Talon TSi, Galant VR4 (7-Bolt variants)

???? Specifications

• Brand: ACL Performance (Race Series)
• Part Number: 4B1185H-STD
• Type: Connecting Rod Bearings (Big End / Conrod)
• Size: Standard (STD)
• Quantity: Full set of 8 bearing halves (for one 4-cylinder engine)

Note: Always verify your journal dimensions using micrometres prior to final installation. This is a Standard size kit and is not suitable for crankshaft pins ground undersize.

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Quick NZ Shipping Note

• For NZ Customers: Fast overnight or economy courier dispatch across both North and South Islands. Fully tracked shipping direct to your garage or tuning shop.