Volvo M 90 5 speed
(Volvo's strongest)
M90 Summary: There
are 2 different versions of the M90, L and H. The ONLY
difference is the gearing, L for lower first and second gear
and H for a slightly higher first and second. There is an
older pre-95 M90 version being weaker than the post-95. I
believe that the difference lies in the syncros of the first
3 gears. All M90's come from 94-98 940 models.
<Info from Patrick
Myhrman>
The later versons are
reportably good for 400 hp. Biggest issue is the flywheel,
you'll have to take the 850R clutch and a flat B21/23
flywheel and modify accordingly.
<Per>
The bellhousing is
intergrated with the gearbox, therefore if you seek one
ensure its for the B230 red motor, NOT the one off a
6yl white (or alloy) motor. The part e.g. # 1208790 is on
the left side of the transmission.
Another issue is the length of the mainshaft - Initially the
box mates to a thick dual mass flywheel (expensive), BUT if
used with a Volvo flat flywheel the input shaft is not long
enough to fit into the crank pilot bearing. An adaptor would
be required, more info when a fix comes to light.