ATI PERFORMANCE SBC 6.780 Harmonic Damper - SFI 917275

Harmonic Balancer - Serpentine Super Damper - 6.780 in OD - SFI 18.1 - Aluminum / Steel - Black - Internal Balance - GM LT-Series 1992-97 - Each Aluminum balancer for LT1/LT4, 6-groove serpentine, Y-body.