i have a mk4 escort bonus which i want to give a power increase to was thinkin normal rs turbo lump but want it to be reliable and more economical so want to fit a zetec as there cheap to but i would like some advice to go about it im good with the spanners and have done engine swaps before but never zetecs so need to know wat i need and the best way to do it any help would be great cheers

wat engine ?
gearbox?
management ?
cooling system wat parts from wat cars ?