72 Demon slanty-to-340 Resto
To add to my previous statement, a stock 302 cast crank is a spindly little twister, but I had exactly 0 issues with 6500+ rpm shifts in a 5 speed, under boost no less with a crank over 150,000 miles, and I've never heard of someone splitting the flange. I've seen them break at both main and rod journals, but usually it was due to abuse or oiling system failures under duress, not just random breakage. With as many people like to brag about mopar's overdesigned parts, something tells me one would have exactly zero issues with flange separation under the same circumstances when properly prepped, so please forgive my scoffing cynicism.