That is an interesting idea, I bet it will work if you can fab enough parts. There is a guy on an e30 board who did the same with an M30 and an S38/B35 intake. He had to cut a notch from the airbox, fab up a mounting plate, make a few brackets, redo some plumbing (oil, water) etc. Not an easy swap but not impossible.Originally Posted by Boom n Zoom
If you can find good pictures of the different heads or even the different intake gaskets (maybe the local dealer has both in stock?) you can compare the bolt patterns and port sizes. Anything can be fabbed... if you have the money! You will probably need a programmable ECU of some sort because the air flow and manifold pressure will probably be too different for the e34 ECU to compensate.
I have never seen E39 throttle bodies for sale but there are lots of them around and a fair number of wrecks, so someone has to have a set. I would expect to pay $1000 - $2000 for a full intake setup if someone had a good working set for sale.
Keep us updated on what you find out - very cool idea.