Z/28 VIN 124379N511814 your block is on Ebay
 

http://cgi.ebay.com/ebaymotors/1969-DZ-3...1QQcmdZViewItem

Long block with intake. Heads are not original as they were cast after the block was assembled, but still.... if it belongs to your car.

I have no affiliation with the seller, and no interest in the auction. Just like to see cars and engines reunited.

I apologize if this has already been posted.