Well, I was trying to sell these heads I have and didn't know shit about them. So, because everyone was asking what they were, etc... what were the id numbers, etc... I found a good website that explains the codes pretty good. The heads I was trying to sell had a C90E code on them and 8H1 and 8H2, which are the manufacturing date.

From the website I was able to figure out that they were 1969 windsor heads that were made August 1st of 1968. Anyhow, if you go to this link it will help you figure stuff out about the codes on your Ford parts.....

http://www.gearheadracing.com/Refere...ingNumbers.htm

Just figured since I had to figure it out, it might help someone else to get that info figured out quicker. Hope it helps someone....Joe