ATI PERFORMANCE – LS1 6.78 Harmonic Damper – SFI
ATI917278
Harmonic Balancer – Serpentine Super Damper – 6.780 in OD – SFI 18.1 – AC Pulley – Aluminum / Steel – Black – Internal Balance – GM LS-Series – Each
Y-Body 6-groove w/A/C pulley, 10% underdrive.