What PARTS did Hurst and Chrysler put in the Super Stock Barracuda & Dart not in other factory cars

Wrong fan maybe, but I´m referring to the pattern of the rivets, and that is correct.
If you know what to look for, this old picture clearly show rivets are placed in the same pattern as fan pictured in the SS Guide, and of cause the fan in your pics... Thanks for sharing them...

SS 7 blade alu fan BillB.jpeg