jsconiers

iTrader: (2)

I have an 02 trailblazer ext that came with a inline 6 and selectable 4wd. Like to swap to an ls6 or 6.0l block. any body done this?

pist0lpete

iTrader: (3)

Well the trailblazers have an optional 5.3 V-8 available as well as the 6.0 that comes in the Trailblazer SS. I imagine if you could find some of the part numbers that come on these vehicles it may make a pretty straighforward swap.

stealth71

iTrader: (15)

Seems like it would be more cost efficient to just sell it and buy the SS.

Fuzzylogic

Just curious, how moddable is that I6?

jsconiers

iTrader: (2)

I don't know how moddable the I6 is. Maybe I should do some checking. About to buy the wife a new people hauler so the trail blazer will be mine for some time since it's paid for and still under extended warranty. I've seen complete 6.0L truck engines for cheap. When the warranty is over I'd like to try the swap. From the outside looking in it would appear to be an easy swap as I have friend who has a LS style v8 in his 03 and there does not appear to be many changes in the model year. I'd prefer to keep my trail blazer instead of buying the new SS.

kairles

iTrader: (1)

whipple used to make a supercharger kit for the 4.2L but I not sure if they make it anymore.

I found this link don't know how old it is but may be something you may want to look into.

GM 2001-2003 GM Trailblazer / Envoy 4.2L Vortec

Wnts2Go10O

iTrader: (12)

their 8.1 kit looks stupid as hell

Bo185

It would be cheaper to get on with the 5.3 then swap whatever you wanted. The parts are out there to do it mounts, radiator, harness... But it may cost more than just buying one that already has one.

I got a 06 trailblazer (non ext)with the 4.2 I6 and it's gutless under 5000rpm's I miss the low end of a OHC v-8!

And they discontinued the wipple for the 4.2 and I have heard a turbo on one.

Check this site out http://forums.trailvoy.com/index.php

Chevy TrailBlazer and GMC Envoy Forum

IOwnCalculus

I assume you mean OHV, not OHC?

I wouldn't say it's completely gutless below 5k, but it does need some RPMs to move. My mom has an '02 EXT with the 4.2 and for what she needs, it works great (if anything, it's now too big since there's only one kid left at home these days).

In the strictest sense, it's an easy swap since the parts are all there. But, it's going to be a lot of labor and the parts aren't cheap. It would seriously be much smarter to sell yours for a 5.3-equipped model.

sb427f-car

OHC? You mean OHV v-8?


Turboed straight 6! Think about it.

B4CU

iTrader: (18)

I saw a Nova wagon in Super Chevy with an I6 from a Trailblazer in it running low 10's. (It also had a turbo on it.)

01WS6er

iTrader: (2)

My neighbor has an 02 trailblazer that I service. I would rather have the 4.3 in my truck than that 4.2 I6. It is gutless downlow compared to my 4.3L

sb427f-car

Straight 6s shouldn't be less TQless than a v-6, it's all in the tune. Turbo the sucker and you'll change your opinion real quick.

01WS6er

iTrader: (2)

My truck does have a custom chip in it and hers is all factory

Pro52R

iTrader: (15)

I hard PCM's for less will get you a pcm tuned for $150..and they are saying it wakes em up quite a lil bit..Then add exhaust and intake and you'll def. have a noticable difference over stock...

As for the gutlessness..they do seem to be soft..but once you get em moving then stomp on it..that downshift and watch the rpm's shoot up she'll pick up speed quick.


As for the turbo..that would be nice...i am sure it could be done.

Bo185

From the line the I6 seems slow. But once you get it up to speed above 5000 rpm it runs well!

ls1_chevelle

iTrader: (9)

Hows 1600-2000rwhp sound? twin turbos with a supercharger

-Matt

jsconiers

iTrader: (2)

My problem is that no one makes a kit for these cars. And even if there was a kit at sak 4k, could I do a swap to a 6.0 for less than 4k.

Fuzzylogic

What makes the I6 so boost friendly?

Sounds like an interesting engine with some time and money...

IOwnCalculus

Probably not, no.