Aeroflow Small Block Chev 6-3/4" Harmonic Balancer Internal Balance (AF96-8950)SBC HARMONIC BALANCER 6 3 4" Internal Balance Part Number: AF96 8950 Aeroflow harmonic balancers are a direct OEM replacement damper which are ideal for mild street engines or as a standard replacement that don't require an expensive race balancer. The balancers are made from steel and feature a pressure bonded inner hub and outer ring for superior strength compared to the factory OE balancer. All balancers have engraved timing marks, which means no