I think the 16v head's valve cover says something about 16v. Other wise, the sure fire way is to just take off the valve cover.
You'll need the entire engine, everything that's attached. You cannot use the 1.3 pulleys, alternator, or cam/crank cogs. Although if its an 1.6 8v and you have a header for your 1.3, you could use it.
You'll need the electric fuel pump.
If its a direct port injected (4 injectors) motor than its a 16v.
Yah you'll need the computer and engine control wire harness.
I recommend using the dodge motor mounts.