Please help adding, correcting, discussing and completing data to this section. This specification run down is provided by participants of this MEL Engine Forum and me. To have it clearly arranged I constantly keep merging the info into this single post. The contributor's original post will remain below.

Bore and stroke
4,30" X 3,30"

383 cid block casting numbers:
575109, EDG......1957 - 1961 note: gas truck

383 cylinder head casting numbers:
Soon to come.