The ACL standard-size main bearing set is produced for Ford small-block V8 engines (255, 289, 302) covering 1962–1998 production blocks. These bearings match OEM journal dimensions and are used during engine rebuilds to restore correct crankshaft clearances. Specify this set when returning a stock-dimension block to factory rotating assembly tolerances as part of a routine overhaul.

ACL 1962-1998 Ford Prod V8 255/289/302 Standard Size Main Bearing Set