3844100AK Pulley photos and dimensions needed of an assembly line pulley

[plumL78]

I can tell you that every survivor 67 L78 camaro in the reg. that we have seen always has the stamped pulley from an early 4p L78 survivor to a july survivor. But i would never say they didn't come unstamped. Stamped pulleys are tuff to find. La cars may have had a double alt pulley. I've found 2 100ak in 20 years