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

So did the engine have other problems besides the internal water pump? I was thinking it looked fairly nicely made, but I have been wrong once or twice before.

Insofar as bulletproofing a POS is concerned, why for example do so many people go to such trouble and expense in order to bulletproof the failure-prone engines on old Ford diesel trucks? Maybe because it costs so much to buy a new one these days? I think cars are starting to get that way, too. What used to be a POS is looking better as more time passes.