Yes. The 90’s factory fuel injected 300 I-6 has the same bellhousing as the 90’s 5.0L V-8.
Careful now though . . . I am pretty sure one of the other of these during their long production lives from the 1960’s to their ending in the late 90’s did change block spacings. Ford pickup enthusiast forums are the place to search this all up.
And I do not know that crankshaft hubs were not different like the small block Chevy; and the GM LS’s both did mid-production usages.
The Man actually wood gas using a driving the Ford 300 I-6 is Ron Lemler. Here on the DOW.
Steve Unruh