Having seen both of Whitedart's iron blocks machine work as delivered I have to say CHECK EVERY surface, bolt hole, treaded plug, etc.
Alot of things were not drilled/tapped streight, machined parallel or to size. Brad at QMP saved his block, most shops would have scrapped it.
Yours looks like a cool build, and I hope it all plays well for you.
Thanks for the information. I have assembled all of the heads, head studs and valve train the only thing I have not put on the motor yet is the clutch and bellhousing that will need to be indexed in, that is a standard thing I do on all of my motors, and the timing cover and water pump.