Yeah, it's behind an LS motor, and that was scooted forward a bit (1.25 inches) for some other packaging concerns. So the positioning might be different behind a redblock.
It's a bulky transmission - especially further back - near the middle and rear ends, compared to the narrowing taper of the 240's tunnel. I had to do a modest amount of tunnel hammering, combined with some judicious use of an angle grinder knocking off various non-functional bumps and tabs on the trans case.
And it will need a top mount shifter. Even the shortest of short rear mounts will be too long.
I did this with a Volvo 260 hydraulic clutch master and a T56 master cylinder, both ends with AN adapters and a generic AN clutch hose between them. And a Yoshifab T5 crossmember (which I already had) and an 'adapter' (chunk of sturdy metal with three holes drilled in it) to mount the T5 trans mount to the CD009 trans. The crossmember ended up on the last set of bolt holes in the 240 frame rails.
You will want to pay particular attention to the gear ratios. For a 6 speed manual, all of the ratios are pretty low.
First Gear Ratio
1):3.79
Second Gear Ratio
1):2.32
Third Gear Ratio
1):1.62
Fourth Gear Ratio
1):1.27
Fifth Gear Ratio
1):1.00
Sixth Gear Ratio
1):0.79
I'm still using it with the 3.73 rear axle my 240 originally came with (automatic car) and it's all just geared too short. Of course, that's with a 5.3L V8 and a turbo, but I think the gearing would be annoyingly short with a punch turbo redblock as well. I plan on changing it to something closer to 3:1, 3.1:1 when I swap the Ford 8.8 I have in. I'll do some more pondering on that ratio when I get around to that project. But currently, a lot of the time I just end up skip-shifting my way along. 1-2-4-6, or 1-3-5.
There are some pics of the trans starting here:
http://forums.tbforums.com/showthread.php?t=166061&page=48
Installing the top mount shifter:
http://forums.tbforums.com/showthread.php?t=166061&page=52