I have a dozen that are all sonic tested and magged (Beware of
cracks in the bottom roll of head bolt holes), Many sonic tested
and acid washed - $750 to $1,250 depending upon if std./020/030.
Shipping would kill you from Nevada unless you put several on a pallet
and trucked them to spread the cost.
My mom ran a wrecking yard and these are the best of the probable 50
that came through there the last Century.
You are shopping for a block cast in 68 that may be in a 68 or 69 Mopar
OR
A 67 or early 68 casting block that would be correct for only a 68 Mopar?