Hi Frank,
As FC 427 said, Is there any oil getting to the rockers, It is extremely unlikely that the springs would make a sound, it is normally the squeaking sound of unlubricated metal that would be giviing you the noise.
I suggest you remove the rocker cover, and disconnect the oil feed to the rocker gear, disconnect the coil lead so that the engine doesn't start, and turn the engine over by the starter to see if oil comes out the pipe that you have disconnected. Keep an eye on you oil pressure light to ensure that it goes out and if it goes out and you still have no oil coming from the pipe that you disconnected then ther needs to be a further investigation as to why there is no oil to the rocker gear oil feed.
If oil is getting to the rocker gear then re connect the oil feed pipe and start the engine making sure that oil comes from each of the rockers to ensure that each rocker is receiving oil fed from the rocker shaft and that none of the oil feed holes are blocked.
You said that the head has only recently been overhauled, how long has this noise been occurring, was the rocker gear seen to at the time, has this noise been there since the engine was fired up and has gotten worse?
Keith
F4+
