:welcome2: Maybe try posting the question in the 1st Generation (2004-2012) Technical Section of the forum. Maybe under the I4/I5 Engine/Driveline thread.

 

I have to ask how you selected this combination. There are so many options for a much simpler engine installation that would not require a PCM to control.

 

Wow, quite a project!
I can't help at all on this one
But hey

:salute:
Welcome to the Nation . . .
Good luck with your project!!!

 

I must agree with Gold Country Russ. There are several combinations for engine/transmissions out there. If I was going to try and do a engine replacement, I would look at the old Chevy straight 6 235 engine out of a early 50’s Chevrolet. Just remember if anyone Zapps our electric grid, no computer vehicles will be operational. No computer controlled autos are the only ones that will continue to operate. Good Luck.

 

It is a classic case of not doing my research very well. Originally I thought that the engine in the Colorado Pickup was an Ecotec. I was disappointed when I discovered it was a GM Atlas. It did meet the size requirements (in 27 the Chevrolet engine was a small 25 hp I4 engine) had good horse power and an automatic transmission. Had I realized that technical information was going to be this difficult to come by I may have made a different choice. At 360 pound and 175 hp it seemed to be a good fit for this relatively small truck.
I have pondered through the drawings and believe I just about have a handle on it, however there are a few questions about the reprogramed PCU which have me concerned.

Thanks for responding to my post.

Have a great day !

 

I will look for that thread, thanks !

 

Strait six would never fit where the in line four once lived. I was also looking for a light weight engine with a good power to weight ratio.

If the power grid gets zapped we will have a lot more pressing things to worry about.

 

Ford 2.0 or 2.3 SOHC or '70's GM RWD V6 would be cheap & solid alternatives.

 

As far as the programming goes. Supermodulation on this forum know the electrical bits of these trucks very well. He can get you set up there. Call him his number is 7326906443

Sent from my SM-G935T using Tapatalk

 

How about a Ford 1.8-2.5L with a Novak-adapt.com adapter w/early Jeep T90 trans, transfer, and axles. No PCM but it would be some serious 4x4 fun.

 

It is just a little Street Rod hopefully with a 2.8 for power. I am no stump jumper.

 

If you're thinking to make it pretty fast, what about something like a Honda B18 or K20? Those are likely to be your best power to weight engines.

 

Several things are driving this. It's a Chevie Truck so a 4 Cylinder Chevrolet motor seems appropriate. The Motor Compartment does not have a lot of width to it since it came with a four banger. And most importantly I already have the Colorado. I got to test drive it and I runs and shifts very well.

I appreciate your thoughts on this but I am going to try to make this work.

 

Good luck with your project. I'd be interested in any pictures you could post on your progress as it sounds like an interesting experiment.

And welcome to here!

 

I have some posted in my profile album. I am not sure how to do t other wise.