The Stovebolt Site Forums The Shop Area The HiPo Shop In with the new.

Just placed a drivetrain in that is 55 years younger.

http://s1074.photobucket.com/user/whitedog76/media/0411151642_zpszlxiwoe1.jpg.html?sort=6&o=47

Looks like the Colorado/Canyon five cylinder engine. My nephew has an 04 Colorado with 355,000 miles on it and still running strong. They get 25mpg and although not a neck snapper they aren't embarrassing. A turbo and other goodies will kick them up to about 400hp at the rear wheels. Hope you post progress photos as this is an interesting thread. We have a 4.2 six cylinder from a Trailblazer and after seeing your photo it may have just found a new home.

You're close. It's a 6 cylinder Vortec 4200. I do have a Colorado/Canyon 5 speed behind it.

To be quite honest the 5 cylinder would be a much better engine to swap. Eveything is really tight with the 4200. Knowing what I do now, I think I'd look for a wrecked Colorado/Canyon.

I'm going to have to trim the front crossmember slightly to make it work. If I had a 47-55 GMC, there wouldn't need to be any trimming done at all.

Also, the oil pan for the 4200 is going to need to be notched to clear the front axle. The way it looks, I don't think I'm going to have to convert it to a rear sump.

The upper coolant outlet on the engine is going to need to be shortened too. I'm hoping it's aluminum and not pot-metal so my Aluminum welder can shorten it.

Just a note.. there is an aftermarket rear sump oil pan for the 4200. This makes the installation a lot easier.

www.vortec4200.com for all things related to the atlas engine ( this is GM's name for the 4200 and its smaller siblings).

Nice tid bit of information there; thank you