The physical part of the swap is the same.
I wouldn't recommend running the 1.3 EFI on a 1.6. Lots of people have tried it, some have gotten it to work ok, some haven't. I believe the problem is the 1.3 EFI doesn't supply (or can't supply) the proper amount of fuel to run the 1.6, so performance is diminished.
IMO, if you are going to do a 1.6 swap, do it all the way. Run the full 1.6 EFI.
If you are going to attempt to run the 1.3 EFI on a 1.6, note that you have to use a 1.6 8V engine, because the 1.6 16V head is different and the 1.3 intake manifold won't bolt up to it.