[COPO]

Wouldn't this be a '69 engine and not a '67 since it is a 512 block? The ad heading says "1967". I also think you will attract more potential buyers by listing some basic details about what you are selling such as the casting date of the block and heads, plus any block stamping information along with pictures and some details about the condition (freshly built? needs rebuilding?, etc) Might save you a lot of phone calls and get it sold more quickly. Good luck.