Engine swap

[Jrod18]

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

[davester]

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]

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]

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]

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