MOT is due in about 4 - 5 weeks and i want to know this: I've just put the 2.0DOHC into my 1.8LX sierra, and i want to know what the MOT tester would say? i mean i havn't changed the logbook yet so it still says 1.8. Do i need to get the car re-tested or whatever to make sure it's all safe blah blah now that it has a different engine or would a logbook change be sufficient.

Basically i want to know the procedure for the paperwork etc.

Another thing, my Speedo ain't connected at the moment as i need an electrical type speedo so will this fail an MOT ? i presume it does but never actually seen them test it!