I've never bought a junkyard engine before. I actually need two engines, a 5.9L Magnum that will go in my '71 Dart, and a 4.2L V6 for a '97 Ford F-150 that blew up. While I expect to do a little freshening up on one, I don't want to need to do a full valve job, new rings and bearings, line boring the crank or cam bearings, etc. The goal is not to buy a $600 engine so I can sink $4000 more into it.