I am not looking to slam this seller, but does it look like the date codes on the heads in the Ebay auction linked below look like they have been altered from "5" to "3" to anyone else:

http://cgi.ebay.com/ebaymotors/ws/eB...m=110484224859

The seller has provided very nice photos (even though they are upside down!) and they just do not look right to me.

Anyone else?

 

The last digit on each head are certainly buggered up. Strange at best.

plasticman

 

The arc of the numeral is also larger than the 3 next to it.

 

I wouldn't suspect one head with a bad "3" but both heads with the same issue ???

 

Only way to be remotely certain is to find other heads with same casting number cast on these dates in 63 and 65. Even then it could be a crapshoot as there could be numerous foundry patterns being used to cast them.

 

I wouldn't touch them with a 10' pole.

 

odd very odd number. I love the upside down pictures. That hides all sins

 

I'm curious why you care about the date codes? They are not judged by NCRS or Bloomington. If you wanted to fake something, the part numbers would be the ones you would alter. It would make them worth more money.

 

Not even close!!

 

daNG., and I am giving away myfeb,19 65,double hump, date coded heads. Well, trading for 2 cases of crumpets..thats maybe 20 bucks,. Guy sure is proud of them.

 

My experience over the years has shown that 1963 461 heads are not any more valuable than 1965 461 heads, so why would you fake the date?

 

I have 4- 1963 461 X heads. Those are ground out 5's.
You should notice the raised letter X on the bottom side of the 461 X head.
I am fairly certain that all 62-63 461X heads are 1.94s. The ones pictured appear to have intake and exhaust valves that are almost touching, = 2.02.
The next series of 461 heads beginning in 1964 came in 1.94 and 2.02 versions in Hi HP applications 350, 365 and 375hp.
If you are purchasing a used set you are generally safer to purchase a set of 1.94's and have them machined yourself, IMO.