I did almost all of the engine/transmission swaps at my job (independant garage). The 2.7 is JUNK!! I lost count of how many of those I had to replace. The two things I noticed the most about them...was the fact that all of the 2.7s that I had to pull out were GRENADED. Not just bent valves, or spun bearings, but twisted rods, pistons boring holes out the side of the block, snapped crankshafts, chunks of metal in the oil pan and in the subframe, etc, etc, etc..
The other thing I noticed about them was the number of times they would die after having a major surgery. We did heads on numerous 2.7s that had spit off the timing chain and bent all the valves. Typically it was only a few weeks later and they would saw themselves in half in some other fun way. What typically happend was the coolant passages would clog with alluminim chips. Chrysler even posted a TSB saying that cars that had cooling issues might have chips of alluminum clogging the heater core (the cure was to blow them out with compressed air...not actaully fix anything).
That being said I would be VERY leery of trying to Lemons a 2.7. I'm a masocist ( we race a Camaro!!) but not THAT much of a masocist!
But if you do decide to run the 2.7 Chrysler has an updated timing chain kit for the engine, its a pain in the butt to instal, but worth your while if you don't want the chain to fail and bend all the valves.
Team Sucker Punch: Winner Class B Doing Time at Joliet 2023 Autobahn ,Winner Org Choice award Were the Elite Meet to Cheat 2015
Chevy Camaro (Tiger striped #38) (1989-2017 RIP old friend)
Chevy Corvette 1984......and still racing!