Turbo Trailblazer 4.2L
#1
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#3
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I think there's this little issue of running an exhaust...but as far as the actual setup goes, it does appear to be done. ![Grin](https://www.performancetrucks.net/forums/images/smilies/LS1Tech/gr_grin.gif)
Those little 4.2 liters are kinda stout, huh?
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Those little 4.2 liters are kinda stout, huh?
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#5
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Yeah... those I6's are pretty beefy little engines. I had an T'blazer with the 4.2 as a daily driver the first year they were out and it definitely wansnt the fastest thing on the street, but it had a fair amount of grunt. I'd love to see what that thing will do at the track.
#6
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Here one from when they were putting it together:
http://home.earthlink.net/~joebobzen...Autorepair.wav
http://home.earthlink.net/~joebobzen...Autorepair.wav
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#7
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GM came out w/ a twin turbo 4.2L project TB. I still have the magazine somewhere and the engineer stated it was a very detuned 400 HP and I remember reading that he said " We just thought 400 was a nice round number, of course if we need more then there's more to be had" and they reported that he laughed when he said that. I think the block was stock except for some very minor internal components (rod bolts or oiling system I can't remember...). He also said that they just wanted to show how "bulletproof the motor was". I was just waiting for it to come out and then they later announced that the idea was too sophisticated for a Chevrolet and that that technology would be better suited on a higher end vehicle like a GMC (I'm assuming an Envoy...) and then later on they announced that they were coming out w/ the TBSS w/ a 6.0 V8 and we ended up w/ this one...
![Hail](https://www.performancetrucks.net/forums/images/smilies/LS1Tech/gr_hail.gif)
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#10
FormerVendor
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Originally Posted by storm5.3
GM came out w/ a twin turbo 4.2L project TB. I still have the magazine somewhere and the engineer stated it was a very detuned 400 HP and I remember reading that he said " We just thought 400 was a nice round number, of course if we need more then there's more to be had" and they reported that he laughed when he said that. I think the block was stock except for some very minor internal components (rod bolts or oiling system I can't remember...). He also said that they just wanted to show how "bulletproof the motor was". I was just waiting for it to come out and then they later announced that the idea was too sophisticated for a Chevrolet and that that technology would be better suited on a higher end vehicle like a GMC (I'm assuming an Envoy...) and then later on they announced that they were coming out w/ the TBSS w/ a 6.0 V8 and we ended up w/ this one... ![Hail](https://www.performancetrucks.net/forums/images/smilies/LS1Tech/gr_hail.gif)
![Hail](https://www.performancetrucks.net/forums/images/smilies/LS1Tech/gr_hail.gif)
A force-fed 4.2 in a colorado would be a hell of a little sport truck
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