need help with engine swap

I think the 5.2 has the same engine mounts as 273 so mounts should be OK.
If you are using an automatic trans you need a bushing in the crank pilot hole to fit smaller hub of your converter. 273 exhaust maniflods will bolt up. You need a center sump oil pan and pick up if the 5.2 has a truck rear sump pan.
I'm also planning a Magnum swap and and plan to change the front of the engine to LA cam cover, water pump and pullies; switch distrubiter to LA electronic, buy an after market intake for a carburator. If you plan to switch to the 90* oil filter housing be careful - the 5.2 is machined differently at the oil filter. 5.2 cam nose is different & has no fuel pump excentric so I'm still working on fuel pump problem. I've thought about drilling & taping heads to take LA type manifolds but unsure if the magnum head has enough metal to hold the threads.
I'm sure I missed something.