"Bulletproofing" a Chrysler 2.7, 3.2 or 3.5 liter V6?

Every one of the 2.7 (and some 3.7 and 4.7s) engines turned to junk quick. They seemed very prone to sludge and had a knack for making milkshakes. I have never heard of any way to make the water pumps not fail to answer your question.