I just got my latest issue of CHP and started reading it, (er, out of respect for Mr. Pozzi, I won't tell where!), He, He!!, anyway on page 16, (Chevy Bowtie News), there is a pic of a three-valve head that fits a Gen IV block but that will also fit a Gen III block!
Now, anybody wanta redrill their old SB's deck and mount the little jewels on an old motor and fab. an intake to fit???
Bore spacing should be the same!!!!!!!!!
PS., heck, I have no idea if this is even possible, but it would be neat to have a multi-valve head on our old motors AND not have to spend an arm AND a leg going Thunder, Dominion or Areo or whoever makes them now.