Help identifying big block heads

I'm looking at possibly buying 2 383 engines. They're about 3 hours away from me. I asked the gentleman selling if he could take particular pictures so I could make a determination if I wanted these engines. I looked in my direct connection engine book at head casting #s and can't see what these are based on the pics. He's very busy and about an hour from where the engines are stored. I tried to have as many specific pictures taken by telling him .
Best pics I could get....

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I'll be happy to take those off your hands.. if I'm reading that right it looks like it says 2406518 and I have a 426 they would be right at home on...then again ,the rocker stands.hmm
Now.. if I'm reading it wrong then its 2406516 64-67 383