Torque converter

Have 66 383 was gonna order a torque converter for the 727 trans ,2500 stall , now this motor is internally balanced , steel crank motor ? So I should get an unbalanced or balanced converter??

Any help would be great

Thanks Mike
From the factory, on all steel crank engines, there are NO weights on the front (engine side) of the converter. I don't know who you're going to order your converter from, but make sure you mention the engine has the steel crank, along with all information on what you have done to the engine. A 2500 stall may or may not be right for your combination, but only a converter builder can tell you that for sure. Depending on what engine is in front of it, the stock converter is rated between 1900 - 2200 stall.