Thanks Brad S. SDAC National Proud Member SDAC Chicago Proud Member 14 Ram 1500 86 Shelby Charger "Chicago Stock"
Brad,
I have had a few cylinder heads with the triangle stamped into them. I believe that is a factory thing. FWIW, I stamp all of mine on drivers side of head between the lower bolts holes with my initials and code for when it was ported and what stage.
Todd
i have 2 or 3 with the triangle all are 782