I am going the T5 route behind a 292. I have an 11" clutch on the 292 and am using a 621 bellhousing from a 78 Z28 Camaro. The transmission is a blend of two trannys. A 96 Z28 V8 T5 with a late 80's T5 from an S10.
The gearshifter on an SM420 is about 4.5 inches back from the bellhousing while the S10 T5 is about a foot back. The Camaro T5 is about 22 inches back (all guesstimates)
Here are the trannys I am about to start tearing apart to do this swap.
[img]
http://www.kinemation.com/Trucks/Images/S10-and-V8-T5s.jpg[/img]
