ENGINE: Utica Engine Numbers for 55th-56th Series V8
Posted by BH on 2009/5/20 14:04:31
Packard engines (and Ultramatic transmissions) built at the Utica plant had a unique serial number applied - independent of the vehicle serial number. This serial number also included an identifying prefix.
For an explanation of Utica engine number prefixes for 56th Series, see: