1.4i bottem end conversion to a 2L 16v.

Hi guys i'm new to this site, just want some tips. I'm from south africa, I'm running a 2008 citiSPORT. It's a 1.4i 8V (65kw) want more from the engine.

what should i do, just go for an 2L 16v import pre-assembled motor, or do the bottom end conversion?

Help Please 8O

Definitely break the car and sell me the dashboard!

What bottom end conversion?  do the full 2ltr 16v if you have the means.