CRG Discussion Forum

Camaro Research Group Discussion => Decoding/Numbers => Topic started by: L78 steve on January 21, 2015, 06:01:01 PM

Title: Cast Date
Post by: L78 steve on January 21, 2015, 06:01:01 PM

Can anyone make out this cast date? Its on a 65 or 66 396 375\425HP block.

Title: Re: Cast Date
Post by: cook_dw on January 21, 2015, 06:05:54 PM

Looks like I 30 5

Title: Re: Cast Date
Post by: L78 steve on January 21, 2015, 06:13:15 PM

I thought GM didn't use I.

Title: Re: Cast Date
Post by: cook_dw on January 21, 2015, 06:19:50 PM

I guess it could be a L also but sure looks like an I..  Whats the pad stamp say?

Title: Re: Cast Date
Post by: L78 steve on January 21, 2015, 06:46:41 PM

The pad was decked and now wears a bogus stamping.

Title: Re: Cast Date
Post by: Gramps69Z on January 21, 2015, 07:48:23 PM

May need to remove some paint to get a better look at it.
" I " was used on cast not stamped.

http://www.camaros.org/numbers.shtml#GM-InternalDateCodes

Title: Re: Cast Date
Post by: bergy on February 13, 2015, 09:19:44 PM

Those date tags were eventually relocated just because of the legibility problem (took a while though!).  The pattern spray would puddle in the tag & sand stuck in the number/letters.  Having the date in the drag would also allow loose sand to fall into the characters.  When it was moved to the cope, the mold machine operator would clean the date tag every time he indexed the hour tag.

Title: Re: Cast Date
Post by: bcmiller on March 19, 2015, 04:00:06 PM

That was great information. Thanks bergy.

Title: Re: Cast Date
Post by: HawkX66 on March 20, 2015, 02:09:38 PM

Looks like it's upside down. G 09 7 maybe. If it's not upside down, it would have to be 1, 2 or 3 for the second digit because of the zero right? It doesn't like one of those.

Title: Re: Cast Date
Post by: dannystarr on March 20, 2015, 02:33:11 PM

Don't remove all the paint, just the tops of the numbers. That will pull them out better to start. Just my 2 cents. Here it is closer and upside down and sideways... D

Title: Re: Cast Date
Post by: BULLITT65 on March 20, 2015, 06:56:51 PM

Maybe a rough cast E?

Title: Re: Cast Date
Post by: dannystarr on March 20, 2015, 10:25:46 PM

Whoops, was in a hurry to get to work. Here is the other pic up-side-down.. D

Title: Re: Cast Date
Post by: firstgenaddict on March 25, 2015, 01:04:24 AM

I 30 5 is what I see as well.