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  1. Looking for a little more power without adversly affecting MPG's.....

    Hello I have a 2005 Avalanche Z71 5.3L/4L60E 3.42 gears with 265/70/17 at's and right now I'm avging 18.8 mpg's and yesterday we had a medical emergency and i kept slambing against the 98mph speed...
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    Elactic fan conversion

    Ok I've gotten my 93 z71 to 01 lm7/4l60e running great and getting pretty good gas milage but now it's time to start trying to make it as efficient as possible cause right now I'm burning around $110...
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    the trans is the matching 01 model for the 5.3l...

    the trans is the matching 01 model for the 5.3l and no tuning has been done to the trans yet. a friend of mine that owns a trans shop told me to change the manual lever position switch, any ideas as...
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    4l60e issues after swap

    I finally got my 93 gmc lm7/4l60e swap drivable but I'm having an issue with my trans. I rebuilt it before I installed in into the truck so everything's fine mechanically inside with maybe the...
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    It should be pretty easy because all the truck...

    It should be pretty easy because all the truck injector connectors should have a pink wire which is your switch power and whatever color the other wire is is your pcm control wire. just make sure...
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    I had that same problem when I made my ls swap...

    I had that same problem when I made my ls swap mounts out of some 1/4" thk 4" wide steel flatbar I drilled and tapped the req'd holes for both 0 offset and 1" offest just in case and first tried to...
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    Brake switch signal.

    I'm currently in the process of doing my 93 k1500 lm7 conversion and have a question about the brake switch signal. I used the schematics from lt1swap.com for the 99-02 5.3l truck conversion and...
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    the factory 5.3L fullsize truck oil pan will...

    the factory 5.3L fullsize truck oil pan will clear as will the factory exhaust manifolds cats and y pipe. i'm in the finishing stages of my 5.3L swap into my 92 GMC k1500 with 98 interior and wiring...
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    Thanks, the dash swap wasn't to bad the hardest...

    Thanks, the dash swap wasn't to bad the hardest part is getting it back in in one piece because they're brittle from the sun. With my swap I swapped everything havc ducting, evap core, dash wiring...
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    Here's some updates of how my swap is turning...

    Here's some updates of how my swap is turning out, I'm almost to the start up point now and loving the ls motor even more (even thought it's not running yet). All I have left to buy is the radiator...
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    5.3L PCM Mounting ideas????

    I have lost my stock pcm mount for my 93/5.3L swap and looks like i'm going to have to build one does anyone have any pics, ideas or suggestions as to how I can build one? I can fab almost anything...
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    Thank's for the info I went out and tied all my...

    Thank's for the info I went out and tied all my lines into the truck and saw where the line hooks up after reading the description and looking at the top of my charcoal filter from my truck I saw...
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    Sorry to ask this but where should i run this...

    Sorry to ask this but where should i run this line too on my 93?
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    oh yea almost forgot your xfer case would bolt to...

    oh yea almost forgot your xfer case would bolt to the back of a newer 4x4 trans if you get one the only issue you may would run into which was the same as I did is the adapter that goes beween the...
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    I just finished converting and rebuilding my 01...

    I just finished converting and rebuilding my 01 4l60e from 2wd to 4wd and all the electronics, clutch packs, solonoids and most of the internals are the same from 95 and up. I got this info from a...
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    Where should I run it back too cause I can only...

    Where should I run it back too cause I can only remember my tank having 2 lines? I've bought swap books and read a ton of articles on this swap and none have mentioned that line.
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    Fuel Lines????

    I'm currenty in the processof swapping a 01 5.3/4l60e combo into my 93z71 and have a question about the fuel lines, i know there's the supply and return up to the rails but there does the third line...
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    Ok thanks I'll give those a try, my buddy told me...

    Ok thanks I'll give those a try, my buddy told me that if we couldn't find any that would there's a couple places around town that can make me a set. Looks like I'm going to go ahead and freshen up...
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    Thanks but I got the tranny situation resolved. ...

    Thanks but I got the tranny situation resolved. I ended up getting the entire engine and tranny from a 2001 chevy truck. Now I have a few more questions can someone please help me with. Does the...
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    1993 GMC 4x4 350 ot 5.3 swap

    I've been reading and researching the swap and have found the different adapter plates and flex plates and things of that nature. One of my questions i have is in reguard to my 4L60E thats in my...
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    yes it turned out to be a relearn situation, he's...

    yes it turned out to be a relearn situation, he's started it several times since we got it running and now it's idles fine, just had to relearn the sensors. thanks again, now i can move on to my 94...
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    Well we got the pcm back from Nelson perf after...

    Well we got the pcm back from Nelson perf after getting the vats system disabled and we finally got it to run, but it won't idle. What could be some common causes for this engine not to start when...
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    Thanks's alot everybody after he finally showed...

    Thanks's alot everybody after he finally showed me the reciepts for everything that he bought I realized that everyone was correct about the VATS system it is the issue. Turns out that all the parts...
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    well i checked out the injectors and their not...

    well i checked out the injectors and their not dirty, i even borrowed my buddies snapon scan tool and there's no dtc's, does anyonw have anything else to checkout so we can get his truck running. It...
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    Well I got a chance to look over the truck today...

    Well I got a chance to look over the truck today and it's got 55lb at the fuel rail, plenty of fire and tries to start but will not. Does anyone know what could be the cause of this?
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