Well, after 330,000 miles, my '90 4Runner V6 4x4 has eaten it for good. It has a bent valve and a couple of messed up rocker arms. Everything else is in pretty good shape. Should I dump it or build it? Any suggestions for a new powerplant? I was thinking of dropping in a V6 Land Cruiser engine but i figured it'd be kinda pricey...Any ideas would help.