Internal balanced..what damper do I need

The question is what dampner are you using on the engine a internally balanced unit or a externally unit,one is forger crank unit one is a cast crank unit,mrmopartech
Need pictures or numbers from the unit.
Are you using a stock torque,and does it have weights on it? Because if it,s a internally balanced unit,you can not have a weighted torque,and need the 360 flex plate,mrmopartech
This info is what you need to find out.

OP, we need to know if you engine was a 360 or 340, and if 340, is it a 68-early 72 or late 72-73? If your balancer is the stock one from a 360 or very late 340, then it is wrong. The same goes for your flex plate and torque converter; neither should be weighted.

Pishta, the SBM SCAT assemblies are all available as internally balanced.