wenny, yes mate, completely strip the head, its worth doing imho and going solid lifter, do it all in one go, to do solid lifter it is a bit of work,

headwork, iskys, solid lifters, cams that suit solid lifters (im sure theyre different for some reason ?!) then you have to do all the tappet shims, its a long job, but give it 8k all day with no problems

there are some new "anti pump" hydraulic lifters, apparently tested at scs, but i havnt heard of them, but im not at work all the time so its possible they have !

wether theyre good or not, i dont know !

jim