2000 dodge intrepid, can engine be replaced from a later model or better engine?

[I'matworkrightnow]

My mother in law bought a 2000 Intrepid and 3 days later the engine goes. We found out that the 2000 intrepid is notorious for engine problems/failure. I was wondering if it is even worth replacing or if it can be replaced with a different engine. I think the engine in it now is a 2.7 or something like that.