Nope, no image and no link in the post. The only way I see the Photobucket link is when I put the cursor on the post listing to open it, nothing in the post works to give me an image.
That DOAE-J is the number we can research to figure out the application for the head. If I can't get the info, I'm sure others can. We do have a few Cleveland and Clevor fans on the forum.
Those heads could be either the 2V or 4V open chamber heads. Turn them over and look at the combustion chamber--is it an open design or a quench design? If it's a quench design, there's a fair chance they could be machined for adjustable rockers--those would be necessary for solid lifters like used in the Boss motors. By 1974 Ford had stopped making the quench chambered Cleveland heads and was only producing the open chambered heads. It was an emissions related concession.
If the heads are factory pedastal rocker heads, there will be a "slot" that locates/positions the pedastal, which locates the rocker arm and the head will NOT be machined for a spring cup. Those would not be the desirable sort--again, unless they are Australian heads. The Aussies had quench chambered Cleveland heads much longer than we did here in the U.S. (and probably in many different incarnations) and so all bets are off if the heads are Australian.
If you plan on driving it much on the street, you want the small port heads. The large port heads flow massive amounts at high RPM's, but at low RPM's their port velocity is so low that they don't fill the cylinders very well and the 4V Open Chambered "HO" heads had almost NO low end torque.
Do you have the rest of the engine? The intake manifold? The VIN plate? I think the 351C "HO" motors have a Q code on the VIN plate.
Doug