Using the archive ref this is what I get:
http://wayback.archive.org/web/*/htt...om/castnum.htm
Printable View
Using the archive ref this is what I get:
http://wayback.archive.org/web/*/htt...om/castnum.htm
I believe they have been down for a year or more, Google it and see!!
Replacement ref I found is:
Chevy Identification Numbers
Is this Mortec Industries, Inc.: chevy engines, chevrolet, chevy ... - Openfos.com what you're wanting? Like Charlie said, simply Google "mortec" and scroll down through the listings.
I did as Charlie said and found the ref I left behind.Mortec for Chevy casting numbers even in archive web sites I guess is gone.