E34 vs E60

[winfred]

just get the whole 2.8 bottom end and put your head on it, you'd need the pistons/rods anyway.....

hmmm... does the m52 crank fit in the m50??? That sounds fun.

[pyro]

Wait if the stroke is a half inch more won't i need shorter rods? if i don't won't the piston hit the head?

So if right now i got a m52 crank 2.8liter itl fit perfactly in my non vanos m50?

[wingman]

The tq difference is VERY noticeable between the m52 in the e39 528 and the m50. I want an m52. =)

As for the 523i, VERY good question. WHY is it less power and tq than the old m50? That is indeed very interesting. Is it simply de-tuned for economy reasons?

My understanding of the 523i/323i (2.5) is that they use the ram pipes from the 2.8 motor which are smaller in diameter. Why? Who knows. Please feel free to call me a goose if i'm off the mark...