Theoretically, what's under the dash should be about the same. But you are also going '92 to '93. Best thing is to print out wiring diagrams for both trucks and do a side by side comparison paying attention to colour codes. You can also check the wire locations on the inside plugs against the outside plugs. Mostly they kept the same wire colour to do the same thing over the years. Or maybe someone else will chime in here who's already done that particular swap.
One important detail is that the fuel pressure for a '93 4.9 is 50 to 60 lbs and a v-8 is only 35 to 45 - so I'm thinking you will need to swap the fuel pumps as well or you'll have too much pressure for the 302.
4.9's didn't drop to 35-45 lbs till '95