Do you mean a 3dsmax / Blender head-hacking tutorial, or a SFM head-hacking tutorial?

There are likely a good few SFM head-hacking tutorials floating around on YouTube. They're probably involving ponies or FNAF because for some reason all the tutorials seem to use those, but they're likely good tutorials besides.

But if people insist, I can make my own. It won't be anything novel.