3890462 castings dated E-5-6 (may 5,1966) and E-19-6 (may 19,1966). These heads are completely disassembled and have no hardware with them. Tehy are the big valve version, 2.02". Asking $425.00 located in central PA.
Oh yeah, I have a brand new set of exhaust manifolds from ecklers for these too. They were coated in the dressing that stays cast looking but doesn't rust or cook off. They were bolted on and run once but aren't as cool as sidepipe headers. $200.00 for the pair. Look them up in eckler's, They are way more than that.