There is no difference between the 98-00 gen 3 manual and 01-03 manual. Same thing. The only difference between the JDM and ADM manuals is the JDM one is in Japanese.
Once you have the engine out, you will need to remove everything off them and switch them. Exhaust manifold, inlet manifold (everything on top) and also small things like the coolant crossover pipe - the japanese '00 motors have an angled coolant outlet, and the ADM '01 motors have a straight one. The front oxy sensor is a 3 wire in the '00 motors, and a 4 wire in the '01 motors, and i found it simpler to switch manifolds, as the import one looked like shit, and mine was in pretty good nic.
Also, its likely you will need to have the cam and crank pulleys replaced (not all the cam pulleys, only the top left one as you look at the engine - the one that has the profile the cam position sensor picks up). Depends what year your original one is, but I changed everything over. These pulleys will likely need to be changed by someone else, as they are torqued up a lot. Plus, you'll need to reset the timing belt after doing this (which is a prick of a job to get right)
If you change everything, there will then be no wiring differences, and its all just a mechanical job. Bit of extra work for you, but makes life much simpler by removing any wiring hassles.
The manual is a god send though.
MY00 Red RX, a nice daily that was sold off once the B4 became reliable...
MY02 Blue B4, aka 'The Project' - v8 JDM STi engine package and assorted other 'goodies' - Sold, then bought back for parts. Stripped and crushed.
MY03 Blue RX, the newer old daily, pretty well more B4 than RX now... In the process of being converted to the track toy... Watch this space!
MY02 Silver Wagon, H6 conversion, full blue/black leather and almost full black interior to go with it.
MY03 White/Silver H6 Outback, donor car for silver waghoon.
MY97 Silver RX, acquired to become track car, but plans changed. To be stripped and scrapped in time.
Thanks Chris
Thanks again
