Why would there be a 2 month interval between casting and assembly?

http://cgi.ebay.com/ebaymotors/1969-Chevy-Camaro-Z-28-302DZ-Rebuilt-Engine_W0QQitemZ150184974539QQihZ005QQcategoryZ336 15QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

alan

2 months isn't unheard of on the high performance, low volume engines. More important would be getting a nice, clear photo of the assembly stamp and pad, and post it here. The guys can tell you if it looks suspect or real.