Dave and Bill,
I picked up a good used (and running) '72 390 with working C6 attached. I'm still planning on using the original motor from my truck (with the 390 crank/rods) at this point and am hoping the C6 fits my motor as well (in case that Cruise O gives up one day). Think I paid a good price too. It's complete. Trans is still attached. Will pick up this weekend.