This is off Burton Powers site:

Duratec HE

The Duratec HE engine is the latest 4 cylinder engine from Fords that, due to it’s near perfect dimensions and characteristics, provides an ideal platform for a performance engine that can be modified with relative ease. Built around an aluminium block, these engines weigh around 92kg (less clutch and alternator). As a natural progression from the Zetec E engine, the Duratec HE is rapidly becoming a popular transplant engine for classic RWD cars and kit cars. We are therefore able to supply most conversion parts for such applications (as we already provide for the Zetec E), along with a range of modified engine components. This engine has currently only been fitted to Mondeo models produced after 2001 and is available in 1.8 and 2.0 capacities. A 2.3 version is also produced in the USA. It should not be confused with the Duratec V6 Mondeo engine or the new Duratec 1.3 and 1.6 SOHC engines that are being fitted to the latest Ka and StreetKa models (nice one Fords!!)