I just bought an 89 Turbo Caravan. Needs a new cylinder head according to the mechanic that the previous owner took it to. It did start when I put a battery on it, but lots of white smoke out the back, and it looks like there's water in the oil, but no oil in the coolant. Made some kind of squeaking noise after running for a minute, not sure if it was a belt or something rubbing from the oil inside being shot.
It's got a really small rad, looks like it's from an omni. Not sure if that's stock, but it might help the overheating problem if I put a larger rad on.
If what he's told me is all that is wrong, would a basic tuneup and a new head be enough to safely try and pry some more power out of it, or should I be looking into a full rebuild first?
The transmission (auto) is recently rebuilt, and looks great. Should I be looking at any small transmission upgrades to take the power, or is the rebuild sufficient?
End goal is around 20-25psi with a few of the obvious upgrades (intercooler, fuel injectors, mild head port, larger exhaust)