The cost about $7000+ to newblock and rebuild head for the 1FZ. A assume you can't get a new long block. A used motor is $2500. Is it worth spending $7000 on a old hi mi 80? Then the tranny would go at some time after that. I can get a good lower mi 80 in better shape than my for not much more than the price of a new motor and tranny? What does one do in this case???