I posted on this engine a long time ago, now priced at $250 on marketplace it has the trans plated off and the rocker cover has some sort of a drive on the end of a cam. I'd guess maybe for a fuel or oil pump? Anyway, it appears to be ported but the lower case has an ugly weld spot.
I sent my last message to ask if I can see it, no previous questions were answered. I'm thinking if it isn't blown up or rusted beyond repair it could be worth a hundred or two. I'd assume it has a big cam of some sort if it was raced.