Fan question

5.9 fan is completely different and won’t work on a V belt water pump.
When I swapped over from electric cooling I pulled the fan and clutch of an 80’s ? Ford truck and it worked out great. (15 bucks if I recall)
Those mounting bolt spots and shaft diameter are pretty standard.
About an inch between the clutch and a new 3 row core radiator on a 5.9 dressed as an LA.
I’m in Az the temp needle barely moves even without the shroud.

View attachment 1716038513
I assume a small block ford ?