Welcome to the forum.
Haven't heard of anybody doing that. Maybe the Pentastar 3.6L V8 would fit.
With all of the computers that need to communicate it would probably not work even if you got it to fit physically.
You would probably have to change the entire drivetrain so it could handle the torque.
It would probably be easier to take a Dodge Charger SRT and massage the body to look like the Cherokee.
You can do anything in Photo Shop.
If you have a few million $ to spend you can do anything.
Let's see if this makes better, realistic, sense?
Buy a Jeep Grand Cherokee Trailhawk and rebadge it as a Cherokee Trailhawk.
Maybe make a few other body modifications? Not sure what could be done.
Most people wouldn't know the difference.
I can't tell the difference between Compass, Liberty, Patriot and whatever else unless I look at the name on the side door.
I rebadged my Cherokee Trailhawk as a FIAT, most people don't have a clue.