Wasn't sure where to post this so I went with the Originality Forum.
Looks like a pretty clean STD bore '67 side oiler C7AE-A block out there on Ebay. Could be good for the traditionalist builder.
Sounds like seller will go for less outside of Ebay and even offers to pay to have it inspected by a machine shop of buyer's choice.
Ford FE 427 Side Oiler Block C7AE A Galaxie Cobra Fairlane Shelby | eBay