The ACL Race Series rod bearing set for Porsche 911/930 Flat-6 engines (1971–1977) is a high-performance standard-size kit that specifies extra oil clearance. This set is intended for engine builds on those model years where standard-size bearings with increased oil clearance are required. Use the extra-oil-clearance specification only when rebuild specs call for that clearance.

ACL Porsche 911/930 71-77 Flat 6 Standard Size High Performance w/ Extra Oil Clearance Rod Bearing