Engine balance crankshaft pulley

[Mertz]

I have a crankshaft pulley with timing marks but it is worn where it touches the seal. I also have a cast pulley that bolts to a hub but doesn’t have timing marks. I can easily mark tdc and use it or sleeve the stamped one. I assume our engines are internally balanced since there is no harmonic balancer. Would the heavy cast pulley affect the balance? I’d like to use it. 

[kencombs]

As long as your pulley is neutral balanced, it will be fine.  And if it made for Mopar flathead it is neutral balanced. 

[Mertz]

It did come off my industrial engine which I assume would have to run very smooth on it’s stand so I believe it is neutrally balanced. Given the uneven wear on the other one it is probably more balanced than the worn one.