when I unscrewed the manifold nuts, half the studs fell out too - and all the rest were loose.

differential corrosion didn't occur!
 
Don't want to p1ss on anyone's parade, but depending on which stud and how it's snapped, that could be quite a big "if"...

lol ** neva had my parade pisd on before yeh well if they snap off then its gona be bit worse cos will have to drill out studs and then re-tap the holes. bit **** but still doable/much better than replacin a whole engine!!!!
 
cars fixed and all for 40 quid! the lieing *******s at the stealers didnt need to replace the manifold as it wasnt "distorted"! anyways im happy now because my 7year old beeza doesnt sound worse than my 20 year old pug 309!!!!
:D :D :D :D :D :D :D :D :D :D