I have ready a bunch of negative comments on the 2.7L engines. I have a 2002 Dodge Intrepid SE/2.7L with 64,000 Miles. No problems, when I ready about the sludge problems on these engines I flushed my engine to be safe and will continue to maintaine the vehicle until it goes out (hope not) or until I am ready to do a engine swap. Three questions in this one really. Should I be concerned with sludge issues and other problems in my specific yr/model and what engine would you all recommend switching to? A specific Yr/Make/Model Engine? Of course one with low miles or none of course! Any websites you would recommend for buying a new engine? Any comments are appreciated. Thanks.