7 inch  Big Block Chrysler  Balancer  - Super Duty
BBM Crank Trigger Kit Option

Big Block Mopar 7" Super Duty Harmonic Balancer

Part# 307
Only $495.00
Options:
This Big Block Mopar Harmonic Balancer exceeds SFI 18.1 ratings and is designed specifically for High Performance Chryslers.

This damper provides a stock bolt pattern, but has been upgraded with 3/8" diameter pulley bolt holes for power adder usage. Due to damper design, will not align with OEM pulleys. Flying magnet conversion will fit passenger side only.
 

Options

  • Flying Magnet Crank Trigger Option - Add $100.00
    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 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.
  • Crank Trigger Bracket Option - Add $136.00
    BBM Crank Trigger Kit OptionBolt on a matching billet aluminum sensor bracket and mounting hardware with passenger (std) mounting.
  • Dual Keyway Option - Add $20.00
    The double keyway option requires that the factory or aftermarket crankshaft be removed from the engine and a second keyway cut into the snout of the crankshaft. DO NOT run a double keyed damper on a crankshaft without the double keys. Failure to the damper hub can happen without the supporting key in the broached keyway slot. The dual keyway option is for Supercharged or Extreme Duty Applications (typically over 750 rwhp). Without the double key modification your crankshaft in these high horsepower applications can lead to the failure of the damper hub and/or the single keyway which results in damage to the damper and the crankshaft snout.

Details

  • Outer Diameter: 7"
  • Weight: 8.2 lbs
  • 6 Bolt, 3/8" Diameter stock Pulley Pattern
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.