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Thread: 4.8L to 6.0 Swap I searched but no....

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  1. #1
    Join Date
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    Ok so we he went out and bought an 99-01 LQ4. I have been talking to Greg about getting it to work with the 06 4L60E.

    Is there any spacer or anything for the flexplate? Or can we order an 99-01 flex plate and make it work? Any Ideas would be helpfull. He gave me some, im just seeing if there are any more out there.
    DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31

    2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts


  2. #2
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    Quote Originally Posted by Red03SilSS View Post
    Ok so we he went out and bought an 99-01 LQ4. I have been talking to Greg about getting it to work with the 06 4L60E.

    Is there any spacer or anything for the flexplate? Or can we order an 99-01 flex plate and make it work? Any Ideas would be helpfull. He gave me some, im just seeing if there are any more out there.
    Does it have the longer crank snout or is it the same length as the original engine? If it's the same, just move the flexplate over from the 4.8 to the 6.0. If the new engine has the longer crank snout you can't use it with the 60E, unfortunately.


    2006 GTO M6 Brazen Orange
    2006 Silverado CCSB Duramax


  3. #3
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    Here is what it looks like.

    The old engine is still in the truck.



    Someone told me that there is a spacer/adapter thing on the end of the crank and it can be removed. You can see where there is a line there, will that seperate from the crank?
    DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31

    2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts


  4. #4
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    If there are threads all the way out to the end of the crankshaft then that is not a spacer.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  5. #5
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    there are no threads. inside and outside of it are both smooth
    DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31

    2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts


  6. #6
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    well, if the bolt holes are smooth for about a 1/2" deep then it may be a spacer. Only way to find out is break out the hammer and try knocking it off. I've heard there are a few that style, with the removable spacer. Billy at TRTTurbo told me of it and we tried removing a spacer on one he had but it wouldn't come off.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  7. #7
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    Quote Originally Posted by Red03SilSS View Post
    Here is what it looks like.

    The old engine is still in the truck.



    Someone told me that there is a spacer/adapter thing on the end of the crank and it can be removed. You can see where there is a line there, will that seperate from the crank?
    That doesn't look like a spacer to me....did you get a flexplate with the engine? What did it look like?


    2006 GTO M6 Brazen Orange
    2006 Silverado CCSB Duramax


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