The na internals are forged as well. The only difference between the two motors are the flywheel/flex plate bolt pattern and the pistons, as compression ratio is different.

You misread his thread. He said an easier option was the new flywheel but he could not fond one affordably. He point blank said he swapped cranks between motors to use the oem 6spd flywheel.

I'll link you in the morning. Going to bed