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ACL Race Series main bearing set for BMW B58B30 and S58B30 3.0L inline‑6 engines, supplied in .50mm (0.020") sizing. This set targets engines requiring that specific journal size after machining and delivers a complete set of main shells for reassembly during engine overhaul. Select the matching size for your crankshaft journal specification when rebuilding or servicing the bottom end.
ACL BMW B58B30/S58B30 3.0L Inline 6 .50mm Oversized Main Bearings
