Quote Originally Posted by Starglider View Post
... I assume the only solution is engine rebuild? If so I might take the opportunity to upgrade my 3.2L JDM engine to the 3.5L you guys have (20% more torque)
I'd probably view that one as a "while you're in there" situation. If the engine was going to have to be torn down far enough to replace the head gaskets, it wouldn't take all that much longer to check the various engine bearings and replace as necessary, especially since you'd most likely want to check for bent connecting rods anyway given the way you said the engine only turned over so far when you last tried to start it.

All in all though, an engine swap would probably be simplest though, so good luck if that's what you decide.