tbh matty unless your well minted i wouldnt take this route!
as mascot says above, it doesnt end there.
you have to get liners fitted and this is a very difficult job that must be done correctly and be 100% or youll end up with probs like stumo had, think your looking at around £600 from a competent precision engineers to get this work carried out.
once the bottom ends rebuilt you then will have to get the top end (head) sorted. once again, a lotta money.
compression cups in head will need machining to match piston size, valves will need to be sorted as well as all the porting and gas flow work that will need to be done, at a guess i would say your looking at almost a grands worth of head work there, plus the cost of uprated cams too. if you need this done then give me a bell and il put you in touch with one of the top guys in the country (for this work) he did my head and did a fantastic job on it aswell.
then you will be needing a quaife, os giken or similar clutch, big rad to aid with extra cooling required, then you will have to find room to fit everything under your bonnet so will have to start chopping things around to make stuff fit.
so in all its going to be a very very expensive job and thats with you doing a majority of the work, plus the endless hours of labour, time spent in garage will p1ss your mrs right off then youll be out on your earhole with no mrs or kids just a pile of metal and boxes of car bits to keep you company:lol: :lol:
think about it matey, is it worth all the aggro and expense for a few extra bhp;-)