stage vi valve gear
I have heard imbeciles say they are white metal and they are most certainly NOT.
They are an aluminum alloy with a small percentage I think of copper and magnesium. The rough non-anodized appearance they have is because of the stress relieving they recieve. They are machined, then shot peened I believe.
They feel more dense than the typical cheaper aluminum used in a cheaper rocker arm. I think you will be very happy with them.
I have these for the magnum smallblock and they are indeed very nice.