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View Full Version : Head date codes?


PaulyZ
05-22-2003, 11:39:00 PM
Trying to determine what these heads are worth (if anything) and someone asked for the date codes.

Head 1 :
6917290
F21 8
GM4
T

Head 2 :
3827186
D N (an aarow inbetween the letters pointing to the D)
Canada
GM16
C49

I checked out the casting #'s but can't find anything on date codes.

Any help is appreciated.
Any idea on value (if any) would be great too.

Gary S
05-23-2003, 12:24:00 AM
I can't find either of those numbers, but instead of 3827186, I find 3927186. That one is 1967-70 camelhump head with accessory holes and 64cc chamber. It is the head used commonly on 4 bbl 327 and 350 and 302 for those years. This head came with 1.94 valves for lower performance applications, and 2.02 for the Z28 and Corvette stuff. I believe the 70 Z28 used this one.

Instead of 6917290 I find 3917290, and that one lists as 67-68 307 and 327. I don't have much information on it, but if it was used on the lower compression engines like the 307, it probably isn't quite as good as the other one.

PaulyZ
05-23-2003, 12:46:00 AM
Thanks. Guess its a good thing I'm not an accountant. http://www.nastyz28.com/ubb/smile.gif