Big Block Chevy (BBC) 6.75" NHRA Pro Stock Damper #150
Big Block Chevy (BBC) 6.75" NHRA Pro Stock Damper #150 - Image 2
Big Block Chevy (BBC) 6.75" NHRA Pro Stock Damper #150 - Image 3

Big Block Chevy (BBC) 6.75″ NHRA Pro Stock Damper #150

$670.00 – $835.00

This SFI 18.1 extreme light weight Harmonic Damper is designed for all out, every ounce counts racing applications on the NHRA 500″ BBC Engines. The damper comes with a 1 piece case and hub assembly to reduce weight even further than our #105 damper. The damper body has a 6 bolt BBC bolt pattern that is drilled through the case to allow for an external trigger wheel to be mounted to the rear of the damper if needed.

Optional crank trigger magnets, bracket and sensor available separately.

  • Outer Diameter: 6.75″
  • Weight: 5.1 lbs
  • 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.

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

Customers also purchased...

Big Block Chevy Drivers Side Crank Trigger Sensor Mount

BBC

Big Block Chevy Drivers Side Crank Trigger Bracket #1064

$170.00
Crank Trigger Sensor

Parts & Misc. Applications

Flying Magnet Crank Trigger Sensor #964

$90.00
Big Block Chevy Crank Trigger Sensor Mount Big Block Chevy Crank Trigger Sensor Bracket

BBC

Big Block Chevy Passenger Side Crank Trigger Bracket #929

$170.00