Well, I took the big block plunge. I was able to sell the 400 block, crank and pistons for right about what I had invested. I then drove way out in the middle of nowhere an picked up my "new" engine.
Not the best but it will allow me to get the mounts, headers and exhaust perfected before putting the body back on.
A 454 complete with TH400 from a 78 dually. I paid $1000 for the who deal. He says the motor was rebuilt and has 38k on it, with the transmission only having about 100. We'll see if all that is true...it's been sitting outside for a couple of weeks so I will need to do some cleanup. It did include ps pump, alt, brackets, and a like new holley, so I can't really complain.
Trying to scrounge up a cheap aluminum intake today, since the old one has some rust in it. Other than that, under the valve covers and what I can see of the oil valley looks nice and clean.