Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededPowerforce Harmonic Damper Big Block Chevy 396/427
Ships on Nov 02, 2026
Lowest Price Guarantee
- Powerforce Harmonic Damper
- Big Block Chevy 396/427
- 8'' Diameter
- Internal Balance
- Nodular Iron
Note: It is possible to convert this internally balanced damper to external simply by adding optional counterweight #91005. Some big blocks may require an aftermarket timing pointer to align with the TDC mark on these dampers.
Professional Products Powerforce Dampers are designed to fit a wide range of engine applications. Powerforce Dampers come internally or externally balanced from the manufacturer but allow additional bolt-on counterweights. With this feature, these Dampers provide high flexibility in switching to different applications and that require more or less balance. This allows one Damper to be used on multiple engines. Professional Products gives a major competitive advantage with versatility combined with quality not found with any other company.
Show More
Powerforce Street Dampers are offered in nodular iron, stainless steel, and lightweight 1045 steel to withstand the demands of today's street performance enthusiasts.
Powerforce+Plus Dampers are constructed of 1045 steel for increased durability and consistency at higher RPM's. They're SFI approved for all-out racing applications.
Features:
- Accurate crank bore for proper press fit onto stock crankshaft.
- Bright white, easy to read timing marks.
- Tough, high temperature elastomer to resist breakdown.
- Powerforce Street Dampers limited to 6,500 RPM.
- Powerforce+Plus Dampers limited to 9,500 RPM.
JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.
ITEM YOU MAY ALSO CONSIDER
