6.75 inch Blower SBC Harmonic Damper w/BBC Crank Snout
SBC Crank Trigger Kit Option PN #10002

SBC 7 Inch Super Duty
Blower Damper w/BBC Crank Snout

Part# 109
Only $450.00
This SFI 18.1 Approved Balancer is designed for High Boost Blower Applications and features a BBC Crank Snout with 6 pulley mounting bolts for blower and other front driven accessories. 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.


  • Flying Magnet Crank Trigger Option - Add $89.00
    Get rid of your separate Crank Trigger Wheel by integrating it into the Damper itself! - Saves on average about 9 Ounces over the MSD Crank Trigger Wheel.
  • Crank Trigger Bracket Option - Add $136.00
    Bolt on a matching billet aluminum sensor bracket and mounting hardware, passenger (std) mounting options. [ Photo ]
  • Crank Trigger Sensor Option - Add $65.00
    3/4-16 UNF Flying Magnet Crank Trigger Sensor - Direct Replacement for MSD #8276. Designed to work with Integrated IW Flying Magnet Balancer Option and Brackets.
  • Dual Keyway Option - Add $20.00
    Add dual keyways for Supercharged or Extreme Duty Applications. Requires double keyed crankshaft snout.


  • Outer Diameter: 6.75"
  • Weight: 7.6 lbs
  • 6 Bolt Pulley Pattern
  • BBC Crank Snout Dimensions
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.