Head Casting numbers for original 03 heads?

[Jerryk]

What is the casting number on the outside of the head that identifies the older heads?

I have in my notes:
are 2C5Z-6049-FA
and 2C5Z-6049-GA

The new latest design is:
2C5Z-6049-BAB

I am trying to find a pair of heads as cores to get new guides, inserts etc, if you have some let me know! If your car went in for the new heads and you happened to record the old casting number for the head that came off the engine that would be great!

Jerry

 

[Jerryk]

ttt

 

[MikeW]

I have a 1st run cobra with teh original heads.... Where is the casting number and I can get it tonight for you if nobody else chimes in.