1973 Duster 340 Clone, Whats it Worth

Duster_71 said

The fact that this could be a 71 340 seems to make it more desirable to me, should I add that into the equation? I feel bad that I made the error in judgment and told the guy that it was not a 71 motor. I called him and apologized for what might be a mistake.

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The '71 340 part should mean it has a steel crank in it and higher compression than a later 340 if its stock. But if its been rebuilt then it may not have the steel crank still, and of course the compression was set by the details of the rebuild. As far as the engine "matching" the rest of the clone, it means nothing. Far too many '73 parts still on that car. It'd be worth more out of the car than a '73 340, but it really doesn't add value to that car as a whole.

Honestly, it would probably be worth more with a date correct '73 340 if the rest of the car was still a '73.