What else do I need to add to it to make a straight swap
ie cams(which ones),valves springs
you will need;
pair of cams,
set of roller followers
set of hydraulic lifters
set of valve springs, collets, oil seals, retainers
set of valves
piper regrinds or comp cams from 'allecotec.com' and a set of wasted stem valves whilst you are shopping there.
oil seals are best bought new from the dealer.
the other bits are quite expensive new, but I have a spare set of hydraulic lifters, set of valve springs and retainers, but no collets or roller followers.