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  1. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    I have a 2002 envoy xl that has had a fair amount of extra work done to it. it was my wife's, dad's car for a long time so i dont really want to just junk it. i was also in the process of stripping the insides and going to completely customize the interior i.e. speakers, wiring, lights...
  2. The 02-09 "How-To" and DIY Section
    I purchased a 2006 envoy with a six cylinder for next to nothing because cylinder #5 had thrown a rod. I had planned on swapping it out with a ls350 "police persuit" I had been given. After looking at the front drive line on my envoy I now wonder is it possible to even do or will I have to use...
  3. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    Hi! I'm new here. Been lurking for a bit browsing through old threads in search of my answer. I only found 1 thread with no replies on it telling me what the swap would entail! I want to put a 02-05 4.2 in my 2006 4wd TB. 06-07 engines seem much less plentiful than 02-05s and much more expensive...
  4. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    Let my oil get lower than I would like. 4.2 vortec in a 2008 GMC envoy. Sounds like rod berring knock and she drank 4 quarts plus honey. Drove it 3 miles and it stalled at every intersection. I also couldn't use drive, only 1,2,3 gears and then it would stall again slowing down/ stopping. I am...
  5. General
    One day a knock came at my door: it was a neighbor looking for someone who used to live here that was interested in buying her truck. I told her, "Well, he doesn't live here any longer, but I happen to be looking for a work truck." She said, "I'm selling one for $300." We began to walk to...
  6. Engine Tunes/Mods
    I have an 06 TB with the 4.2. The engine was knocking so I bought a used engine. It is out of a 2005. Since the head design is different along with one of the sensor locations, I re-routed the wiring to the "new location". I swapped out the fuel rail because they were different. Once it was...
  7. Engine Tunes/Mods
    Well my 4.2 liter inline 6 threw a rod this morning and i lucked out finding a 2004 5.3 liter for 400$ with PCM and complete harness, so now its time to start the swap, I've already got a pretty good idea of everything I may need Only deal is the 5.3 came out of a pick up so I have to check my...
  8. Engine Tunes/Mods
    Hello everyone, looking for some advice. or HELP!!!! Please. I working on a engine swap. I have a 2007 Trailblazer 4.2. I purchased A 4.2 out of a 2008 Trailblazer. Swap went fine Switched manifold, Intake, I believe cam sensor,(front rt. side) Crank Sensor (lower Lf. side) plugs were different...
  9. Engine Tunes/Mods
    I'm looking for any information on what type of motor (LQ9, LS3) to put in my 2006 TBSS. Threw a rod about a month ago and I want to buy a turn key crate motor (With Warranty). Ive looked at Pace Performance, Blue Print, Jeg's and Summit. I'm looking to spend around 7K on the motor. I have...
  10. General
    Had my tranny blow up the day after I bought it from a private owner and the engine went out about two days ago on the autobahn here in Germany when I was doing about 80mph. So now im trying to get some insight on what engine to drop in my 06 TBSS. Already got a 4L70ESSX from Phoenix...
  11. Engine Tunes/Mods
    New guy here. I have an 06 Trailblazer 4.2 i6 with a fried engine. I've been calling around to see who has motors at what prices so on and so forth...what I'm coming to the conclusion of is it "seems" it's all the same motor (minus some horsepower) so ultimately my question is can I put an 04 TB...
  12. General
    Hey! New to the forum here. I have an '06 TB with the I-6 and I am considering upgrading to SS "similar" specs. I am just testing the waters, but I'd like to move to a 5.3 or 5.7 and I was wondering if anyone has done a swap like this before or can point me to a link where this is discussed...
  13. OEM Issues
    http://forums.trailvoy.com/showthread.php?t=63045 Check it out and leave me some comments
  14. Engine Tunes/Mods
    Well guys I haven't been around in a while and there has been a reason..... My poor Olds has had Massive coronary failure,emphysema, and been crippled with Polio..... I threw 3 rods,piston rings and blew up my tranny...(I suppose a 200 shot will due that) :duh::bonk: So, seeing that it needed...
  15. Engine Tunes/Mods
    Anybody ever think of doing an engine drivetrain swap from a gmt 800/900 series trucks into their gmt360 series suv's? I have a great deal on a 2008 silverado with a 6.0 v8 with d.o.d 6 spd trans and 4wd!!! It was sideswiped, insurance totaled it,but I drove it for 2 hrs no problems, several...
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