Question: what is the difference between a zetec and a duratec engine?
Answer: The biggest differences between the Zetec and Duratec are: Zetec is an iron block, Duratec is aluminum. Belt driven non-interference cams on the Zetec, chain driven interference cams on the Duratec. Exhaust is on the front of the Zetec, while its in the back on the Duratec.