yup, try to find a 4g93 dohc head in zth lah, is more cheaper than chop shop about 400-500, last time one member offer me 380 including the manifold and spark plug but my mech advice don do this conversion(bcos he said no power, just waste money), now feel a little bit regret y don take it..
totally cost will around 1500, i heard from members from this conversion thread. alien_03 and deacon bro got one to sell, try to ask them and get from them. if conversion need 2000 fees, i think u should not go do this conversion, it is not such feeling that match v this amount do it.
anyone successful can share v more details like performance, fuel comsuption, torque, hp, and any attracted pics? hehe.. nice conversion.
actually i also go ahead v this conversion v my sohc 1.8, but i am confusing now whether go v mivec head or just dohc head. mivec will give more power but following v the cash flows also. some more need a skillful mech, if not, mivec din't operate properly.