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2006 Silverado 1500 CCSB 4.8/4L60E to 6.0LQ4/4L65E Swap

Vorrtec

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Vorrtec New Member

Vorrtec

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Hey guys new to posting on any type of forums but I have some questions about a swap I'm going to be doing and hope I can get them answered.

 

I have a 2006 Silverado 1500 with a 4.8 and 4L60E with 172k on it, truck runs amazing but I want the added power especially with the truck having a 6" lift and 35's. Bought the truck a few months ago dirt cheap knowing I was going to swap the engine and tranny out. I got a great deal on a 6.0 LQ4 and 4L65E with 147k on it out of a 2005 Yukon Denali a few months ago. Redid all of the seals, had the heads milled, new lifters, new valve seals, had the valves vacuum tested, new knock sensors and a few other things. From talking to Marty Stromberger here in Spokane, WA he said it was a pretty straight forward swap, so my question is being I am wanting to tackle the swap myself I know the engine will all bolt up the same but will the tranny? I know I have to put my existing transfer case on and take the Denali AWD one off, will mine pair straight up to that 4L65E? Will all the wiring and plugs be the same from the 4L60E to 4L65E? Me and my buddy swapped out his 5.3 to another 5.3 last month and it took us basically a day so I know the engine itself the swap will be pretty straight forward just want the questions answered about the tranny. My truck also doesn't have the smaller trans cooler up front but I have the one that came with 6.0 so I will be installing that as well. I have full confidence that me and buddy can get this swap done in a weekend, we have all the correct tools but I just want to make sure the tranny will bolt up and plug in the same so my truck isn't dead in the water. I know from speaking with Marty the truck will start up and run fine using the existing computer from the 4.8 but it may shift like garbage on the way to his shop to have the computer retuned for the 6.0. 

 

Hopefully I explained all that well enough, hoping to get some answers back on this!

 

Thank you!

-Braden

davester Senior Enthusiast

davester

Posted
Posted

I know with the 4l80e, it has a different output shaft between 2wd and 4wd.  Is your 4l65e also from a truck w 4wd?  It really sucks to swap the output shaft if you need to (you basically have to disassemble the whole transmission, put in the right shaft, then reassemble.

  • 2 weeks later...
Vorrtec New Member

Vorrtec

Posted
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Posted

Engine and transmission both came out of a 2005 Yukon Denali, so it had an AWD transfer case on it. From what my guy said here in town my 4WD transfer case should swap right on to it. 

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