Different size torque converter knob 170 vs 225?!? Are you kidding me?

Quite some time ago a friend & I ran into that problem when we were installing a fresh 340 with an early 273 forged crank. Had division finals coming up & discovered the difference the hard way during the thrash. We got it after he ground out the register as carefully as he could. But I don't think I did well at the race.