367 vs 410 Engines Masters

Oh interesting.
I think usually a factory crank vs stroker crank is roughly a $1k difference.
And no performance benefit from the internal balance on the factory crank.
If you watch the show it will give you the cost of the crankshaft. As far as the internal balance I think the reason they gave was ability to swap flywheel or converters with internal balance. No mention of a performance gain that I recall. It's an older video but worth a watch