Trying to ID 350 SBC engine block

[Ahren Fox]

Block number is 4015445, can’t find anything on this number for a 350 engine I’m looking at. It is listed as a 1969 SBC 350. Any help is appreciated. Thx

 

[63Half-ton461]

That water jacket outlet in the deck looks more like big block Chevy , do you have more pictures of the engine ?