Big Block Chevy (BBC) 7" Super Duty Harmonic Damper

Specifically designed for Extreme Duty Boosted Applications on the Big Block Chevy, this Damper exceeds SFI 18.1 ratings and is designed specifically for Blower or Turbo Applications on Big Block Chevys making over 2000 hp.

• Comes with Single 3/16" Keyway


• Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.