do you know the reg of the car the engine came out of? i can find your engine number that way
i might have a knackered block with a number on it, that do you?
above the oil filter on the right hand side, need to go right to the top right and you will see it..
i need to do mine, heard theres a 5week thing for it to get back from Dvla, why not try and use a brush and some flour and brush it on, should stick and make it visible