Wikipedia is not always correct. The 2.5l inline 4-cylinder engine was never called "Dureatec" to my knowledge. It has been called "Lima", as it was from the Lima, OH plant originally, and eventually, Brazil(the country, not the one in Indiana).
The Duratec label applies to the DOHC 4-banger available in the '00 and up, and to the v6 DOHC series used in Probe, Contour, and Taurus (and other) car lines.
If you want to get exact details, I'd forsake wikipedia as they have not policed their data as well as I would prefer. Just my opinion on Wiki.
tom