No they are totally different engines, Pinto is a engine from the 70's where as Zetec is an engine from the 90's.
It's quite interesting that choice of engine being that the Escort is F/F where as the Pinto is a RWD engine, a complete Zetec engine would have been a better choice imo.
This is assuming you don't have a MK1/2 Escort?
Martin