He did say several times that it was a numbers matching block and it cost somewhere in the neighborhood of $20 grand for the engine build. After the extreme heat on the block during welding, it required the cam bore and main bore to be re-bored and the block head surfaces had to be squared. It was overbored .040. It had bushings in the lifter bores.
That's a lot of cash to save an old 383 block. Also mentioned was that the transmission was not original. Worman kept saying the original block would increase the value $50 grand, which I find hard to believe, especially since the transmission wasn't original.