Messages (Become)

That's not for m42/m44.
That's for the m43 (kind of a m42/4 block with 8valve head instead of the 16v one).
https://en.wikipedia.org/wiki/BMW_M43

A few companies sold that adapter in the late 90's/eartly 00's here in europe. IIRC Mosselman was one.

M43 engine wasn't for sale in USA, only europe and some other places around the world (not usa).

m42/m44 and m43 manifolds are very different, the flange where that adapter bolts is different both in pipe sizes (holes) and bolt spacing.

Also m42/4 manifolds are longer and tubulars, the m43 is a more compact cast one.
The head flange is completely different between m43s and m42/4s, so the m43 manifold will not fit.
IIRC that adapter has a T25 turbine flange, but double check this, I may be wrong.


just to give you an idea, this is the m43 manifold, that adapter fit on this:




and this is the m42/m44: