Check out the following site for transmission info:
http://www.gm.com/automotive/gmpower.../apps/4l30.htm
This one for some motor info:
http://www.isuzu.co.jp/world/product...ertrain_2.html
A couple of sites I found rate the 3.0L TD at 245.6 lbs.ft of torque at 2,000 rpm. They also list it as a "fly-by-wire" throttle.
Good luck on the conversion. I too would love to have a turbo diesel.
Also, here is a link to another board where other people are talking about Isuzu V6's dieing.
http://www.4x4wire.com/forums/showfl...5&o=14&fpart=1