[Stefano]

One of the things which has changed on this site over the years is that very knowledgeable hands on members no longer voice their opinions about such situations.

I applaud John for stating his first hand opinion.

The fellow selling the engine seemed to be a nice enough guy and admittedly knew very little about chevy engines and COPOs. He is a self proclaimed Mopar Guy.

However; he was very quick to jump on Dan's opinion regarding the engine and not willing to listen to the opinions of members who have had many years of experience with these cars and engines.

I don't know if any COPOs were produced at any plants other than the two mentioned. I have heard about cars and docs but have never seen "originals".

The stampings on this engine are not consistent with other known and documented examples and they do show possible signs of tampering/changes.