are you replacing the internals of the head or the entire head? either way, its easier to take off the intake mani. in order to get to the valves, you dont HAVE to take off the rocker assembly. Honda made them so you can just take out the camshafts and lift the rockers to access the valve springs. If your sending it to a machine shop, i would take the rocker assmbly off. I sent mine with it on and they took em out and threw them all in a box. it was a pain to sort through and pur back on.

If you do take the rockers off, just make sure you put them back on the bar where they go.

It depends what your trying to do with the head.