Can you swap a Chrysler 2.7 liter engine with a 3.5 liter engine?

Of course you can. Do a google search on "2.7 to 3.5 swap" and you'll find a web forum that discusses the swap including which engines work and what parts you'll be needing. There is good news about this swap: The 3.5L engine swap is actually CHEAPER than replacing your 2.7! You'll get more power and have a much better engine in the end. Gas mileage may suffer a bit, but who cares when you MASH down on the pedal and you go!