2004 KJ 3.7 into 2011 KK

[Willonious]

I have a 2004 3.7 with 4 plug PCM (NGC). Can I swap this into a 2011 without changing internals?

 

[u2slow]

I know the combustion chambers, and cam profiles are different between those years. I dont know if the 2011 PCM cares or not.

 

[lfhoward]

The 08-10 isn’t swappable with the 11-12 KK so I doubt an 04 would be. Sorry.

That’s why you can get a Hypertech Max Energy tuner for the 10 and below but not the 11 or 12 model year, even though the engine is the same. Different software programming.