ACL Bearings 5M2327A-.50 Oversized Main Bearing Set - 0.50mm

The ACL Bearings 5M2327A-.50 is a precision-engineered 0.50mm oversized main bearing set designed for Holden Calibra and GM Family II engines. This bearing set is manufactured in Tasmania, Australia, where ACL has been producing high-quality engine bearings for over 70 years with a global reputation for precision and performance.

Key Features:

• 0.50mm oversized bearing diameter with standard oil clearance specifications
• Tri-metal construction for enhanced durability and load capacity
• Hardened steel backing for improved bearing retention and dimensional stability
• Increased crush design locks the bearing into the housing for secure fitment
• Enhanced thermal transfer properties for more effective heat dissipation
• Precision wall thickness tolerances ensure consistent performance
• Suitable for reground crankshafts requiring oversized main bearings

These oversized main bearings are designed for engine rebuilds where the crankshaft has been machined or reground. The 0.50mm oversize compensates for material removal during crankshaft refinishing while maintaining proper oil clearances. ACL's proven metallurgy and manufacturing precision make these bearings suitable for both street and performance applications.