Hello There!

Decided that my little 1.4L 16V mk6 is to restrictive and dull so have decided to do some upgrades and modifications to it to suit me. Now i want to drop a 1.6L ZETEC SE engine from a mk1 ford focus. I believe it is the same engine as the 1.4L duratec? My Question is: Is it a straight swap apart from the ecu, key and transponder which obviously needs to match that of the new engine. Can anyone advise?

Thank You!