Near on a straight swap if you are still running a carb, the 1.4 cvh will bolt straight in with the cvh box.

Parts you may need:

Fuel pump
radiator for 1.4 or 1.6 (???)
brakes from the 1.4
exhaust from a 1.4 or 1.6
Presuming its a mk3?? wiring loom out of a 1.4 or 1.6 fiesta, ( not xr2i ) as its a bitch trying to join looms together.

I'm sure others will add more if needed but theres a start.