"Chickenshift" looks more like '54 Meteor. A Canadian Ford. The center of the grille has been changed. The original grille had a "V" inthe middle where this one has a wide bar. Just a thought.
i.d. nailhead
The numbers to identify the block are on the rear of the block just in front of the bellhousing. Just below the distributor.
For a 58 - 364 they would be 1173201 or 1174372.