E32 735i And E34 525i Engine Swap.

[dub2]

How difficult is it to convert my e34 525i engine to a m30b35 engine that was pulled out of a e32 735i (Both 1988 models)? And how much would it cost to get the conversion done?

[witeshark]

I don't know for a fact, but I'd think engine mounts and front suspension may need changing.

[dub2]

From what i can find on the net i think the engine mounts do need changing. Do u no if engine mounts from an e34 535i would be the best thing to use? And iv also heard that the bell housing may be differnt or something like that, ne ideas about that?

Thanks alot.

[witeshark]

As to the engine mounts, that would be my first guess. The bell housing may well be different; there may be differences in the firewalls as the 2.5 and 3.5 likely were mated to different transmissions.