SBC 7 Inch Harmonic Balancer Externally Balanced
SBC 7 Inch Harmonic Balancer Externally Balanced

SBC 6.75″ Lightweight 6 Bolt with BBC Crank Snout Harmonic Damper #107B

$415.00 – $515.00

Commonly used in N/A applications, this SFI 18.1 Approved Damper is designed for high RPM applications where rotating weight is a concern. This damper is designed for use with crankshafts that have the BBC dimension crank snout.  For high hp supercharged cars we recommend using the 7″ #109 Super Duty Damper.

  • Outer Diameter: 6.75″
  • Weight: 7.5 lbs
  • Pulley Pattern: 6 Bolt GM
  • Big Block Crank Snout
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.
Clear

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.

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.

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.

SKU: N/A Category: Tags: ,
Damper Installation Instructions [PDF Format].
Damper Hub Honing Instructions [PDF Format].
Harmonic Damper Installation YouTube Video