Stock valves and springs. The machine shop replaced one intake valve, one exhaust valve and one seat. I don't know how much was milled, but I can find out quick enough. It was a normal service operation. Invoice in hand.
These are the real deal unmolested Mopar X heads off of a 340. They are refurbished and ready to bolt on.
Casting number 2531894 - 1968-1970, 340 LA-series small-block, 2.02/1.60 valves. Casting dates are 12/04/1967 and 12/05/1967.
These are suitable for restoring your 1968-1970 big-valve 340...