I would like some clarification on this subject.

If I were to buy a Escort say a 1.4LX and then have an engine swap done to say a 2L, what would happen MOT time?

Due to the new way a MOT is carried out ie computerised etc would they not have to type in that the emmisions test was for a 2L engine and it would still be registered as a 1.4 on the V5 would I run into problems come MOT time?
I know it would be breaking the law by not declaring it on the V5 but thats not the question

Thanx
(Hope this makes sense)