Originally Posted By: GMDad


You lived in Ontario? Where abouts?


Mississauga close to square 1.

The OEM trans used with the 4200 is a 4L60E and the 4200 pcm is set up to run it, so it kind of makes sense if you want to run an auto to install the engine and 4l60E trans at the same time.

If you want to run a manual trans then the colorado MT is a good start. You will need a flywheel from Jerry W.


51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them