ATI PERFORMANCE
SBC 6.780 Harmonic Damper - SFI
SKU: ATI917276
$471.74
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Harmonic Balancer - Serpentine Super Damper - 6.780 in OD - SFI 18.1 - AC Pulley - Aluminum / Steel - Black - Internal Balance - GM LS-Series - Each
Notes: Aluminum balancer for LS1, 6-groove serpentine, F-Body. 10% underdrive with AC pulley. Also fits 2005-06 GTO according to ATI.
What this part is for
ATI PERFORMANCE SBC 6.780 Harmonic Damper - SFI is a performance part builders add when the stock piece won’t do the job — whether that’s durability, flow, adjustability, or packaging in a custom build. Ask Grok with your year, make, model, and engine, or Call Us — confirm fitment once before you buy. Real people at Cunningham Customs handle the order.
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Comments & builder notes
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