Giving Head

[C2K]

I think you mean the cam carriers are line bored as a pair with the head, that' common machining practice for split bores.

Frankly, why waste your time, just give the whole lot to them if all you're doing is removing scrap, it's not like you're going to do anything with the parts you take out.

Why worry about re-using the cam carrier bolts? If he's building any kind of decent build he'll replace them himself, though at the end of the day it's unlikely to have yielded.