V5 engine change, like for like?

Same fuel?

I would think so, also, you don't want to get caught out when selling it if the engine number doesn't match the v5 Should be easy as Ford did it, you will need proof from them that they did the work.

If it was a new engine from ford they come unstamped and they stamp (might even be etched) the original number (which is the last few digits of the vin) on and scrap the original.

It maybe as a factory replacement engine it doesn't have a number stamped on it, that used to be quite a common practice, it was expected the dealer would stamp in the existing number, as most warranty parts once reviewed are simply scrapped.