360 Swap in 66 Cuda

Hi,
I'm going to be swaping motors in my 66 cuda. The Cuda has a 273/904 combo now. I plan on replacing the 273 with a 1978/ 360 motor. Will I be able to bolt this up without any problems with the external balance 360 or do I need a special flex plate? Is there any difference in a torque convertor between an internal and external balanced motor? Thanks, Steve
Author: admin