I bet there is many around. My lacal garage always thought that the willy and the valver had the same engine and thought they where both 2l. They also thought it was only cosmetic changes to the willy to make it special.
If they think like this then if somone came to them will a fecked willy lump they might drop a 16v lump in as they consider them to be the same and its easier to get the 16v lump.
Since working on my car all the time

@) i think that they have learnt the difference!
Kev