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The ACL Race Series standard main bearing set for BMW M20, M50, M52 and M54 engines is specified for the 1919cc 80.0mm bore and 66.0mm stroke package and supplied with a .001in clearance on the standard size. This combination restores close factory clearance on rebuilt engines, providing precise journal fitting for dependable crank support in these specified BMW engine families.
ACL BMW M20/M50/M52/M54 - 1919CC 80.0mm Bore 66.0mm Stroke .001in Clearance on STD Main Bearing Set
