Cutting open a torque converter

The only issue is balancing. I BELIEVE (could be wrong) but aren't 360s externally balanced? If this is the case you could throw off the balance of your brand new motor. To state the obvious this would be bad.

If the converter is neutrally balanced and you to carefully cut apart it might be okay.

I think the better / simpler choice is to find a used flywheel, or a toothed flex plate.

Regards,

Joe Dokes