Just planning to lift the engine out of the 850 t5 (Lusty). Had a lightbulb idea of swapping the exhaust manifold for the Japan made one, or the S60R.

I thought they were a feasible swap, the partnumbers I have are 30637921/30837921 for the S60R and 9207688 for the "Japanifold" , so I had a look on the interweb of confusion for a few details.
Unfortunately I cannot do a direct comparison yet, as I have yet to spend any cash...but looking at pictures of the standard t5 manifold vs either of the above, some of the bolt holes / mounting brackets appear to be in slightly different places. (esp around cyl #5 port)

Anyone done this who could confirm or deny whether there is a fitment issue, and maybe advise of different part numbers if necessary?

Many thanks in advance.

Cheers
Woz