Moving on from the post about the replacement head. Had fitted a replacement gasket and put the car back together only to find that the problems were still there.
Have had a garage examine the head today and their professional opinion is that it is dead...
In order for me to get a replacement through them, they have asked for the engine number off the car. Now, I am sure the answer is in the Heynes manual, but I am currently in work and am hoping that some kind soul could let me know where I need to look.
On a side note, thanks for peoples advice on the head removal, didn't feel confident to start with but the work was surprisingly easy.
TIA