Found this guy with a pontiac 400, YH block, casting number: 230089. It has 4x heads. It came out of a '74 Catalina (had a rusted frame). It has around 60k miles, and it has been sitting for 2-3 years but it was running when it was pulled. It has all the accessories (water pump, alternator, etc) but it doesn't have exhaust or an intake manifold (but he plugged the holes before storage). Oh, he wants $300 for it. I need all the information anyone has on this engine. EDIT: I forgot, the engine comes with a transmission (probably a th300 or th400) attached.