Get a new Radiator cap too - and look all around for leaks and drips.

But I will SPECIFICALLY NOTE one place to worry about a leak that you will have a hella time to get at once the head is back on:

There is a steel line that runs down the passenger side of the head to the back and around the back to a manifold heater connection (it heats the floor of the intake manifold). It is joined to the manifold by a short length of rubber tubing, about two inches long. THAT piece of tubing needs to be brand new when you put it back together.

Trust me....