Got my 347 back from balancing need help..

[nitroponynj]

I just got my 347 rotating assembly back from getting balanced the place who balanced it sent us a new flywheel and said that they couldnt get the one we sent to work, this is the thing the one they sent is larger 14" the old one is 12 1/4" how is my starter gonna work with this flywheel,,,is this right or should i have the same diameter flywheel as the stock one? need help asap