I like the 6's.. they're straightforward, easy to work on, decent supply of replacement parts at reasonable prices.. they're reliable, and not too bad on gas.. and with the stock rear and tranny, have plenty of low end torque.
I personally don't see any real advantage to swapping it out for a V8, unless your 6 blows up and you just happen to have a running V8 laying around.. or your building some sort of hot rod.
