I have a ford zetec engine with out an engine number? how do i go about getting one? or do i not need one?

Thanks

Andy

We have a zetec 1800 engine, and the engine number was very difficult to see until we actually cleaned the engine up. The number was stamped vertically on part of the engine near where the bell housing attaches. It was covered in cr*p, so we didn't actually find it until we cleaned the engine up.
I believe there is more info on http:\www.zetecinside.com (although I've just had a quick look and couldn't find it immediately... still a useful reference site)