Author Topic: 6.0 6L80/90 Swap into 81 k20 CS  (Read 1476 times)

Offline Autonutz

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6.0 6L80/90 Swap into 81 k20 CS
« on: December 18, 2016, 11:46:49 PM »
Hey guys im going to start restoring my 81 k20 camper special, ripping all the way to the frame and maybe throw in some reinforcements there as well since im thinking of going with a donor 2009+ 2500hd 6.0 or 6.2 with the 6 speed transmission instead of the old 350 with the th400, I live around 125km from the city hence the want for the 6l80/90.

Its got the np208 with a dana 44 front, not planning on going bigger that a 6 inch lift and 35" tires.

Anyone got one of these done or know of a write up on it?

Is it better to go this route or maybe go for a duramax/allison swap?
« Last Edit: December 20, 2016, 11:28:48 AM by Autonutz »

Offline Captkaos

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Re: 6.0 6L80/90 Swap into 81 k20 CS
« Reply #1 on: December 19, 2016, 03:19:50 PM »
Mt truck has the 6.0, but it is 4x2, there are other 4x4 in the ls subsection.  The duramax would be much more labor intensive. 

Chris Lucas
73-87chevytrucks.com
squarebody.biz


Offline roundhouse

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Re: 6.0 6L80/90 Swap into 81 k20 CS
« Reply #2 on: December 22, 2016, 12:38:35 PM »
Lots of write ups on the 5.3 swap


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