074 Head date codes

[SuperNovaSS]

Are the date codes on these heads that were on Ebay really 1968? They do not look like other date codes I have seen on early 074 heads.

Ebay "1968" dated 074 heads (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=110222723181)



Jason http://www.yenko.net/ubbthreads/images/graemlins/beers.gif

[acelr8]

Don't look like mine either.Jeff

[iluv69s]

other than the black marker...they seem to look like real dates compared to this head which is dated one day apart...what are they supposed to look like??

anyone have a pic of something different??

[SuperNovaSS]

I thought they are smaller charaters and include the "6" in "68", just like an winter's intake manifold from those years. I know the 69s used larger numberals and included the 6 in "69"

[Rixls6]

[ QUOTE ]
other than the black marker...they seem to look like real dates compared to this head which is dated one day apart...what are they supposed to look like??

anyone have a pic of something different??

[/ QUOTE ]

This is a pic of a date code from an "074" head. I thought all the early aluminum GM heads were date coded a similar style? http://www.yenko.net/ubbthreads/images/graemlins/dunno.gif

http://i36.photobucket.com/albums/e43/Rixls6/69L88aluminumheads003.jpg

[iluv69s]

Chevrolet did not necesarily use the same font/numerical styles for casting dates on the same exact type part depending on the date the part was cast(boy was that a mouthful!!)...... for example these are 2 pics of original x-ram intake top plate casting dates which are only one day apart and still very different...

those heads on ebay are almost a year earlier than the others...

Not that that proves anything on the head dates...I'm no expert, but just showing real pics of real parts for comparison...

[iluv69s]

another

[iluv69s]

sorry for the bad pics, but you get the idea..they are almost totally different...and only 1 day apart??

[Mr70]

iluv69s
Per your picture inquiry.
Type or (either one will work)..in front of it,and or at the end of your attachment code below.
http://www.yenko.net/attachments/319571-DSC00497.JPG

It comes out like this.
http://www.yenko.net/attachments/319571-DSC00497.JPG

[SuperNovaSS]

I see what you are saying but the dates on the heads look nothing like either of those dates. A one digit year code on a winter's part is much later in my opinion. I imagine the date is 1978.



Jason