Owned this '71 from 1992 until a couple years ago. Original motor had 180k on it when I bought it. I had to rebuilt it 6 months later and got 100k out of the rebuild (my fault). Replaced that motor with a ZZ4 crate motor and put 60k on that one but the rust got away from me. I sold it to a guy that'd been pestering me for a few years about buying it.