Int Bal for 396/427 BBC. Uses SG iron hubs for maximum strength & crack resistance. Each assembly is factory balanced for smooth operation. Engine:396, 427. Factory Balanced For Smooth Operation. Uses SG Iron Hubs For Maximum Strength.
THIS UNIT FITS WELL AND LOOKS GREAT
does appear to have 3/8"-16 coarse thread for the pulley retention
I know most of the original one's have 3/8"-24 fine thread...so pay attention to that