Stamp is way to small in photos to check, but they state partial VIN 19N640 , 0508 assembly date.


http://cgi.ebay.com/ebaymotors/1969-Z28-Camaro-DZ-Engine-Carb-to-Pan_W0QQcmdZViewItemQQcategoryZ33615QQihZ015QQitem Z250166100299QQrdZ1QQsspagenameZWDVW

Was that heat shield a GM aftermarket part?

Yes, GM sells one each for square bore & spreadbore manifolds. Or use to yrs ago.