SBC 7" BDS Blower Hub Harmonic Damper

Just because you're running a BDS Style Blower doesn't mean you have to run a solid hub, you can STILL run a Damper and SAVE YOUR CRANK!

This SFI 18.1 Approved Balancer is designed for BDS (Blower Drive Services) and other Roots Blower Pulleys utilizing a 2.760" 6-bolt bolt pattern and 2" male pulley register to bolt right up. It features all aluminum case design for light weight, stress-proof steel hub and 1040 steel inertia rings for durability. Wet clutch friction style precision machined harmonic dampening for street and race engines.

• 6 Bolt, 2.760" Pulley Pattern


• Male 2 Pulley Register for BDS and other Roots Style Blower Pulleys


• 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.