Big Block Mopar 7″ Harmonic Balancer for BDS & Roots Blower Applications #306

$555.00$720.00

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

This Big Block Mopar Harmonic Balancer exceeds SFI 18.1 ratings and is designed specifically for Blown High Performance Chryslers. The damper is designed for BDS (Blower Drive Services) and other Roots Blower Pulleys to bolt right up. The damper provides a 6-bolt, “BDS” 2.76″ bolt pattern as well as a male 2″ pulley register.

Lilke all Innovators West Balancers, it features an all aluminum case design for light weight, stress-proof steel hub and 1040 steel inertia rings for durability. Wet clutch friction design style with precision machined harmonic dampening for street and race engines.

  • Outer Diameter: 7″
  • Weight: 8.2 lbs
  • 6 Bolt, 2.760″ Pulley Pattern
  • Male 2 Pulley Register for BDS and other Roots Style Blower Pulleys
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.

Options

Double 3/16" Keyway Add On

Add an additional 3/16 Keyway to your Damper. Required the crankshaft to be machined for a second keyway 180* out from the original keyway. *Requires damper purchase. This is a labor option for new damper purchase only.

3/16" x 1/4" Keyway Add On

Add an additional 1/4" Keyway to your Damper. Required the crankshaft to be machined for a second keyway 180* out from the original keyway. (Requires a Blower/Super Duty Hub or BBC Crank Snout) *Requires damper purchase. This is a labor option for new damper purchase only.

Double 1/4" Keyway Add On

Dual  1/4" Keyways (Requires a Blower/Super Duty Hub or BBC Crank Snout) Required the crankshaft to be machined for a second keyway 180* out from the original keyway. *Requires damper purchase. This is a labor option for new damper purchase only.

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