I did read someplace that the casting code D2AE-CA was indeed both 2 and 4 bolt. There was no distinction to which one it was other than taking the pan off. I think maybe George had said that or it came from one of the 351C web sites.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.