the unthreading feeling is probably your crankbolt backing out.

sorry to hear about your engine. that really sucks. check out this thread. could be the solution to your engine upgrade Hyundai Galloper

it's close by, has less than 60k mi on it, and the price is right. probably can't import it but you could strip it for an entire low mi spare parts kit. And it's the V6.

90 LWB - Not your average bear

"You are what you are, and you ain't what you ain't." - John Prine