On the other side is cast what appears to be F207 ( By the distributer ) Can't see anything by the Oil filter
What is stamped under the Alternator is V0207DZ
It has a replacement Trans and I have no idea how to check what heads are on it ? (I have not gotten around to checking out the Rearend numbers yet but it is a twelve bolt )
ST6912437 NOR360729BDY
TR 711 71 B PNT
07A X33D80
Check that casting date again - "F 20 7" would be June 20, 1967, and that's almost two years before the 010 block went into production.
The "V0207DZ" would be an engine assembly date of February 7, 1969, and it's generally agreed that "DZ"-suffixed engines didn't start using the 010 block until April.
If you remove the valve covers, you'll find the head casting number and date; please post what you find.