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Zr2 + lt4 = ???... Zr6?

40K views 81 replies 45 participants last post by  Cwilt  
#1 · (Edited)

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#8 ·
been working on trying to get this thing back on the road. Most of the hold up has been waiting on parts, but i think we might have it up and running before the end of the year now.

2017 zr2, crate lt4 engine, 8l90e trans, and t-case from a full size pickup.
ok, that is just awesome.
 
#12 ·
If it's anyone that will tackle this with success.its Cpwire. Awesome build!

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#22 ·
I know right? I guess these other members didn’t see @CPWire other build. But I give you mad props on your builds bro @CPWire
 
#13 ·
seriously an LT4 fits? a 650hp supercharged v8? wtf want... how much weight was added to the truck with that? btw that thing is insane
 
owns 2016 Chevy Colorado Z71
#14 ·
You should also being asking what suspension upgrades are needed, plus does the current drive train really support 650ft/lbs of torque. The bigger question is why not just buy a Raptor or Dodge Power Wagon and a Camaro ZL1. What does this engine buy you that a regular V8 crate does not in terms of use in a ZR2? You are not drag racing a raised truck and 450 ft/lbs will get you up the hill as well as 650 ft/lbs. This build makes no sense...

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#20 ·
They are story in itself! Always loved your work back when I saw you in the 1st gen days!!.

Again awesome build! Its just tickles me silly!
seriously an LT4 fits? a 650hp supercharged v8? wtf want... how much weight was added to the truck with that? btw that thing is insane
I can't imagine there would be a huge weight increase. A diesel zr2 iron block would probably be just as heavy. I bet any additional weight would be equivalent to passengers.

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#24 ·
Yes, built for show. Just like my 2WD was built to show that an LS3 engine can be installed and keep all the factory functions of the truck. And to show that the stock rear differential will hold up to the V8 on the drag strip.
Then when the LS3 came out and the turbo L83 went in to show again what the rear differential will hold, and that all of the stock vehicle functions can be retained, and that we have mounts, programming, and wiring to support such a swap.

Now this truck is to show whether or not the stock differentials are capable of handling this sort of power, and to show what it takes should someone want to do this kind of swap in the future.
When it is finished, we will show pictures and videos of this truck on the dyno, as well as pictures and videos of this truck off road at the dunes and wherever else the owner decides would be fun place to go.

So hopefully it will be a nice showpiece for my company and to show folks who wish to do this kind of swap in the future what the weak areas are, what parts will need to be changed or modified, and just how capable this truck can be afterwards.
 
#27 ·
Yes, it's pretty close dimensionally to the 8L50E that is in it stock.

doing gods work sir... that'd be amazing to see that dyno'd... Im sure there would be something breaking in that setup, but would like to see what would be needed to make that work properly...
I don't know how much it'll hold, but I know how much we're going to give it.
 
#26 ·
doing gods work sir... that'd be amazing to see that dyno'd... Im sure there would be something breaking in that setup, but would like to see what would be needed to make that work properly...
 
owns 2016 Chevy Colorado Z71
#28 ·
Dimensionally close enough that you don't need driveshaft work, or just close enough that you're not bashing sheetmetal to fit it?

Nice work, as always. Are you moving some of the motor mounts for engine swaps? So far you're breaking the ground here on the forums for swaps.
 
#31 · (Edited)
Apparently, of all the pictures I've been taking along the way, I never took a picture of the engine mounts before they were bolted on and installed. We've made a few sets now, I've just never gotten a good picture of them after they've been powder coated. Essentially they are a plate that bolts to the engine, and drops on to the stock Colorado rubber frame mount.

The trans crossmember and trans mount are just the stock ZR2 mounts. It looks like the 8L90e and T-case from the full size are overall a slight bit shorter than the ZR2 combo, so I'll need a slightly longer driveshaft in back.

Image
 

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#40 ·
It's more retarded than that, they're not tinkers. Current Performance is the leader in professional plug and play GM engine swaps, and has been for years.

"Please Mr. Performance Company, don't innovate for our trucks, we just need a K&N and a Flowmaster.. anything else is overkill and pointless."

Shut up, you ******* dipshits.