The one block I had fits with was the one I mentioned in the beginning of this, it had one tube in it and had spun a #2 main pretty bad it self heat treated. I seen the dirt car it came from but yep had the reed core roller cam =, the old school small block hemi rods and it was a w2 head motor.

Its been long enough ago I will look for the pics of what I found was not blocked off on the other side, I did block a passage off that I determined should of been blocked. And although a semi easy life since its still being raced today but not by me.

OP, you never mentioned the bore I dont think, is it heavily overboard? Not that it really matters.