Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, Escalade EXT engine swap in Cadillac Escalade Forums; Why are the engines out of the newer generation EXT's (2007 and up) not compatible with the older EXT's. (2002 ...
- 07-04-13 10:42 PM #1Cadillac Owners Member
- Automobile(s): 2004 ext 1990 allante
- Join Date
- Jul 2013
Escalade EXT engine swap
Why are the engines out of the newer generation EXT's (2007 and up) not compatible with the older EXT's. (2002 2006) What would have to be swapped out other than just the engine to make the the trade work. Asking because there are many of the newer engines available with low miles. Seems to be a shortage of the older engines available with low miles.
- 07-04-13 10:53 PM #2Originally Posted by jreed012
There is differences between the two
The mounts would most likely need swapping between the two and the PCM is different for the newer engine(not compatible with our trucks)
In all respects you would benefit more from a newer truck vs doing the engine swap
- 07-09-13 10:56 PM #3
Re: Escalade EXT engine swap
You might want to read this article that talks about how to simply bolt on 07+ heads to the older block for increased performance. http://www.superchevy.com/technical/...e/viewall.html