Get a Bigger engine car Full stop
Wacking a bigger engine into a small one has quiet afew problems
Insurance - its going to cost more, its modified
DVLA - Must declaire the engien change
The suspension, the Standard suspension is setup for the Stock engine
Either get the Sporting Suspension if the 1.2 16v fitted
The Brakes - The same storey, you will have more weight to stop, so better brakes are needed, again the sporting Setup for the 1.2 16v
But if you fit a 2L or the 1.4 a HGT brake setup could be a better option
Again all this is then going to push the insurance up even more!
and dont think about not declairing it, if you have an accident and its because you couldnt stop becuase the brakes aren't upto the Job
You've got the insurance company "**** off" in poliet terms
Ziggy