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Engine swap

Jrod18

By Jrod18
in Ask A GM Technician

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davester Senior Enthusiast

davester

Posted
Posted

A lot.  The electronics between the trucks are totally different, and integrated throughout the truck.  So, you basically need to stuff all the wiring/dash/electronics from the 2012 into the '01.  And you also will likely want to add the 2" body lift for clearance (at least, probably will need more body/frame modifications to work.  And don't forget to change out the front and rear diffs (with strong versions, not just a different ratio) to handle the torque of the Duramax, and bigger torsion bars up front to support the extra weight of the engine.

tlaw91 Enthusiast

tlaw91

Posted
Posted

It would take less time to figure out how to drop the 01 body onto the 12 frame then to go through swapping powertrains

2001 frames aren’t meant to handle that


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Colossus Senior Enthusiast

Colossus

Posted
Posted

Don't use a 2012 in a 2001.  You'd want the Diesels prior to the LMM (up to 2007.5) anything after has emissions stuff that will cause all kinds of problems. 

dsr611 Senior Enthusiast

dsr611

Posted
Posted
On 7/27/2020 at 5:30 PM, Jrod18 said:

Just curious on what it would take to put a 2012 Duramax and Allison tranny in a 2001 Z71. 

Lots of $$$ and time

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