The last time I was there (a few days ago) they still had a 340 engine that's supposed to run (but, I haven't heard it run) same with a '65 273 engine and 904. They also had a 1966 273 core engine that has a bottom end knock. The 340 is kind of a Frankenmotor. I think the block is a '72, but, has a steel crank and 587 casting heads, which I believe are '74-5 360 head without the smog holes. Not sure about what internals it has in the way of cam, valves, and pistons. I remember seeing one 318 steel crank on the shelf....no heads at all I don't think.
