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ACL Race Series main bearings for Nissan CA18/C20 engines offer a 0.50 oversize dimension to accommodate machined crank journals during rebuilds. These bearings are specified to reestablish proper oil clearances and provide robust crank support for engines that have been machined to oversize specifications. They are a component selection for thorough engine reconditioning where journal sizing has changed.
ACL Nissan CA18/C20 0.50 Oversized High Performance Main Bearing Set
