Flywheel Identification

Guys, I'm sorry, but that's NOT how the MoPar flywheels are balanced.
A 340 cast crank flywheel is NOT the same as 360!

A 360 flywheel is pretty easy to spot, it will have 3 large holes, @ an inch or so in size, drilled into the backside of the flywheel, spaced about mid-point of the perimeter and the center.
A 340 C.C. flywheel has smaller holes drilled into the the back, which are spaced more to the outer perimeter of the flywheel.

75greenduster, since you are having the engine balanced, have the people doing the balancing balance the flywheel with your assembly.
This will negate all the extra hassles and cut down on the expense to find the "correct" flywheel for your application.

Mark.