Thread: 6.0L WJ Build

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  1. #1 6.0L WJ Build 
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    Well I figured I may as well make a build thread on this.

    Dropping a 2000 Chevy 5.3l & 4L60E into my 1999 WJ 4.0l. I thought it would have more room then a ZJ but it's got less! I'll need a little hood scoop too.

    I'm using the LS1 F-Body manifolds.

    1st day just pulling the old crap out








    2nd day test fitting the engine and making room. Going to plate the uniframe and box it in again inside.

    Last edited by DaveJeep; 12-06-2012 at 06:52 PM.
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  2. #2 Re: DaveJeep's 5.3l WJ Engine Swap 
    Senior Member ATL ZJ's Avatar
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    Nice... welcome to the GM Gen III powered Grands club.

    what are your plans for the PCM programming and harness work?
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  3. #3 Re: DaveJeep's 5.3l WJ Engine Swap 
    Senior Member AgitatedPancake's Avatar
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    damn badass man. One of the first non-dodge WJ engine swaps i've seen. The only other non-factory swap I can even think of is a guy's 5.2 swap (nonpoint or something?).

    I'm definately going to have to watch this.
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  4. #4 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Quote Originally Posted by ATL ZJ View Post
    Nice... welcome to the GM Gen III powered Grands club.

    what are your plans for the PCM programming and harness work?
    I'm doing the wiring once I look into it more. A little confused on some of it. I don't have the GM fuse box, I am going to try and use my stock fuse box and rewire it for this.

    As for tuning, I have HP Tuners and have tuned tons of vehicles. I'm going to keep the stock Jeep speed sensor (mine was converted from ABS speed signal by changing the tail shaft to a 96XJ style). The GM speed sensor does 40 pulses per shaft revolution, the Jeep one for 6 pulses per sensor revolution so I need to figure out what number to plug into HP tuners to make it work.
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  5. #5 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Quote Originally Posted by AgitatedPancake View Post
    damn badass man. One of the first non-dodge WJ engine swaps i've seen. The only other non-factory swap I can even think of is a guy's 5.2 swap (nonpoint or something?).

    I'm definately going to have to watch this.
    I remember reading that but could never find it again.
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  6. #6 Re: DaveJeep's 5.3l WJ Engine Swap 
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    record for best new member post?

    looking good. keep us updated fo sho.
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  7. #7 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Quote Originally Posted by paulkeith View Post
    record for best new member post?

    looking good. keep us updated fo sho.
    HEHE, I've been lurking for a little while.
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  8. #8 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Couple Engine shots, never had a camera last night to show it sitting in the engine bay.


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  9. #9 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Why are you flipping off your camera man?
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  10. #10 Re: DaveJeep's 5.3l WJ Engine Swap 
    Senior Member ATL ZJ's Avatar
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    Quote Originally Posted by DaveJeep View Post
    I'm doing the wiring once I look into it more. A little confused on some of it.

    The GM speed sensor does 40 pulses per shaft revolution, the Jeep one for 6 pulses per sensor revolution so I need to figure out what number to plug into HP tuners to make it work.
    cool, I did my harness work with the info on lt1swap.com and found it easy, but I'm sure you know way more about the pinouts than I do if you do a lot of tuning. And Dakota digital has some speedo signal converters if you end up not being able to trick the PCM with any magic number.
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  11. #11 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Can't wait to see how this turns out, I just picked up a 5.3 out of an 05 tahoe last week to drop in my WJ.

    GoodLuck!!!
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  12. #12 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Quote Originally Posted by jsteves View Post
    Why are you flipping off your camera man?
    Not me, my buddy lol

    Quote Originally Posted by ATL ZJ View Post
    cool, I did my harness work with the info on lt1swap.com and found it easy, but I'm sure you know way more about the pinouts than I do if you do a lot of tuning. And Dakota digital has some speedo signal converters if you end up not being able to trick the PCM with any magic number.
    The only thing I'm having a hard time with is what size fuses to use I guess. I understand the wiring and have read over it more and more now and I got a grasp on it now.
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  13. #13 Re: DaveJeep's 5.3l WJ Engine Swap 
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    I like the way the axle snapper is coming.
    My Jeep

    Willing, wanting and able to work hard business college grad looking for work. Know of a lead? Please be kind and email me at chadjans@yahoo.com.
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  14. #14 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Got any input on how to make the passenger side frame rail beef and build it back up?
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  15. #15 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Quote Originally Posted by DaveJeep View Post
    Got any input on how to make the passenger side frame rail beef and build it back up?
    serch.

    http://www.mallcrawlin.com/forum/sho...4&postcount=52

    Quote Originally Posted by Derek33
    Its a jeep, it doesn't have to make sense.
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  16. #16 Re: DaveJeep's 5.3l WJ Engine Swap 
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    I've read that thread plenty. Very nice build!

    But I'm just looking for opinions on how to rebuild the part of frame we cut out. We have some ideas, just want more input.
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  17. #17 Re: DaveJeep's 5.3l WJ Engine Swap 
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    If guys keep this up a new subforum may appear.
    5.9 Limited, rebuild time
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  18. #18 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Couple pics of how we shaved down the LS1 exhaust manifold on the EGR casting.

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  19. #19 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Nice work man.

    I got bored so I doodled this up in paint. I can't tell wahts going on at the bottom of the rail so that one line might not make sense, but I say just plate the shit outta it.

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  20. #20 Re: DaveJeep's 5.3l WJ Engine Swap 
    Senior Member AgitatedPancake's Avatar
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    oh and I was out at the local jeep junker the other day looking at alot of wrecked WJ's for parts, but I also looked at how they failed in the wrecks. In all of the front end collisions when they were hit from a corner, both the frame rails folded sideways about 2-3" in front of the factory motor mounts. It was the same story on so many of them it almost looked like a designed crumple zone. Just saying that to make sure you reinforce everything
    The Blue Submarine
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    Life’s journey is not to arrive at the grave safely, in a
    Well preserved body, but rather to skid in sideways,
    Totally worn out, shouting “HOLY SHIT, WHAT A
    RIDE!”
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  21. #21 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Thanks buddy!

    The stock frame was reinforced a lot right around the motor mounts. We are still doing a little more cutting today and then the welding begins. Hope to have the engine sitting in there by Monday and the frame rails all plated. Then I'd say another week and I'll have it going down the road I hope.
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  22. #22 Re: DaveJeep's 5.3l WJ Engine Swap 
    Senior Member Jeeptech01's Avatar
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    Cool. I'll be watching this. I put ls motors in everything. May have to do my lawnmower at some point.
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  23. #23 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Got a bunch of stuff done since my last update. Mostly little things.

    Testing fitting after frame was done on inside


    Passenger side clearance


    Drivers side clearance


    Out side frame plating


    Passenger inside


    Driver inside


    Cleaned up the engine and trans a little

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  24. #24 Re: DaveJeep's 5.3l WJ Engine Swap 
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    You got that boxed in pretty nice. The engine looks WAY better after you cleaned it up! You get that transfer case figured out yet?
    I collect Jeeps.

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  25. #25 Re: DaveJeep's 5.3l WJ Engine Swap 
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    Quote Originally Posted by downtowncb View Post
    You got that boxed in pretty nice. The engine looks WAY better after you cleaned it up! You get that transfer case figured out yet?
    I was amazed at what a can of engine degreaser and a quick pressure wash did.

    I have a clocking ring on the way and swapped the np233 inputshaft into my np242.

    Building mounts this week I hope if I find the time.

    What are you doing about the shifter? Where the GM usually has 4 forward gear selections? And what are you doing for throttle and shifter cables, etc? Got it figured out yet?
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