Thanks Guys,
Thats what I figured, the brackets and whatnot would all get swapped over to make the HO block conform to the Renix setup.
I looked up the two different blocks on RockAuto.com and I did see that they had different part numbers, they mention a difference in the Crankshaft Pilot Hole (thats for the Pilot Bushing?) Both Jeeps are Automatics so it shouldn't matter there...
It also lists out the addition of the Knock Sensor hole in the Renix description. I actually have had that unhooked on the '90 MJ cause the sensor is all cracked and it still runs fine so I might not do anything there.
Correy, do you still have that Renix motor up for grabs if for whatever reason this doesn't work out?