Hot Rods another 427 question

I posted recently about having purchased a 1963 427 along with the engine I received several boxes of extra parts, in one box were spare pistons with the casting number c3ae6011t the only info on these I could find was that they are race application does anyone have any info on these

 

If they're cast , not forged they are not racing Pistons....

 

Looked in my 64 parts book and the only pistons shown were 6108 numbered. No pistons with 6011 found...

 

C3AE6110T are standard 63-65 FORD / MERCURY FE 427 pistons, typo error?

 

mgtstumpy the pistons I have are the same as yours , on the site mustangtek they are listed as race application and that is the only place I can find any info on them

 

Stock 427 Pistons with valve bumpers , to stop from bending valves if over revved