ALL buyers should do due diligence. However , a well done restamp can fake out some pretty knowledgeable people. I always bring someone who knows more than me.
I am not trying to say tell a guy his documented Nickey car is worth more! that is not the point. This has nothing to do with price or even added options ........It is about faking an original motor. The point is creating a counterfeit car and passing it off as such down the line. if no one restamped motors, or they got in trouble for such behavior, we could look at stamps and say its matching or not. Instead, we say " well the vin is matching, but is it a restamp? How do the broach marks look? Is that the right Font?"
It would be nice to know that what you see and research is what you get.
Merry Christmas
PS Santa's sleigh...............is a restamp