CRG Discussion Forum

Camaro Research Group Discussion => General Discussion => Topic started by: pjbizjak on February 12, 2010, 05:25:46 PM

Title: 3917291 heads
Post by: pjbizjak on February 12, 2010, 05:25:46 PM

Does anyone know if GM had a slow-down period of casting the 3917291 heads? I've been looking for a set dated mid March 68, and it seems like there are lots of 67 castings and 68 May-June, but Jan Feb  and March 68 castings are almost non existant.

Title: Re: 3917291 heads
Post by: 68Zproject on February 13, 2010, 05:50:29 AM

Try Tracy Performance in MI?  He has lots of castings and dates.  Not cheap though.

Title: Re: 3917291 heads
Post by: opelitis1 on February 13, 2010, 12:47:08 PM

Have a D3 8 bare casting - 1 only..  Close but no cigar..
T.

Title: Re: 3917291 heads
Post by: pjbizjak on February 13, 2010, 02:40:09 PM

Thanks, my trim tag says 04A(1st week of April 08) so engine would have been assembled probably 3rd or 4th week of March 68.