It can be done but there is a bit of magic involved trying to get the older engine to talk to the new auto. If I was doing it I would use a matched trans for the replacement engine but most of the 4jb1s are manual so you have to fit a clutch peddle etc. I know there was a company in England specialising in this swap a while ago but no more details Try here for more info
http://www.itocuk.co.uk/forums/viewforu ... 2537cfcca4