Either the T-5 or Rover tranny will require mods to the tunnel. I prefer the
big hammer method, having done 5. It is much faster and easier than cutting
up the tunnel, & who doesn't enjoy little pain. After the first 5 min. or
so, the arms do start to ache. My first conversion used the old T-50 GM
tranny which did not require any tunnel mods but this is a weak tranny & is
now long out of production.
The choice of cross member has nothing to do with engine/transmission
location, as the engine mounts are on the frame. Either cross member can be
used, but I prefer to use the early cross member as the best way to lower
the car or maintain the ride height in the case of a chrome bumper car.
Many of Glenn's ideas are good ones. I tend to listen to someone with 100
plus conversions under his belt over another who writes well but has little
experience and offers lots of bad advice such as raising the ride height of
a chrome bumper car with a rubber bumper cross member and moving the engine
forward.
Jim Stuart
Reply to <jimbb88@comcast.net>
-----Original Message-----
From: owner-mgb-v8@autox.team.net [mailto:owner-mgb-v8@autox.team.net]On
Behalf Of Dodd, Kelvin
Sent: Tuesday, August 30, 2005 8:08 PM
To: v8
Subject: Rover Gearbox Tunnel Modifications
Looks like it is a good day to ask questions.
I'm about ready to stuff a Rover 3.5L engine into a 1977 MGB shell. Up
to this point I understood that I would have to modify the transmission
tunnel to clear the taller Rover 5 speed gearbox that I plan on using.
I know a couple of ways of modifying the tunnel (Glen Towery big
hammer, Roger Williams fabricated tunnel section).
I received some images from a gentleman (sorry, can't remember the name)
of the transmission tunnel on his Rover transmission equipped car and it
does not have any modifications that I can see. I have heard a vague
rumor that installing the Rover box in a later B with the (rubber
bumper) V8 cross-member there is enough clearance for the Rover box
without modification if the original MGB V8 type engine mounts are used.
Does anybody out there have input one way or another? (Besides throwing
away the Rover box and getting a T5)
Folks that found they had to modify the tunnel?
Folks that did not have to modify the tunnel?
The answer would probably save me at least one engine stabbing trial.
Thanks
Kelvin Dodd
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