Hi guys, need little help if its going.

I have 1 Mk3.5 fiesta with a slighty nakered 1.1 HCS engine pretty sure the cylinder bores are scratched along with few other problems. so i want to replace it with a a lower milage preferable younger engine.

My question is, the 1.3 enigne out of KA's and other Fez's look remarkably similar if not identical to the 1.1 is it possible to fit the 1.3 straight into the fez replacing the 1.1 and if i need to change any parts?

I know it seems silly to do this but i cant be bothered with searching for new car and i wana get lil bit more expierience with the engine change.

Any help would be awsome please