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Vehicle Info NeededPowerforce Harmonic Damper Big Block Chrysler/Mopar (All except early Hemi)
Ships on Sep 07, 2026
Lowest Price Guarantee- Powerforce Harmonic Damper
- Big Block Chrysler/Mopar (All except early Hemi)
- 7.25'' Diameter
- Nodular Iron
Notes: This damper fits all351, 361, 383, 400, 413, 426, and 440 engines including Street and Race426 Hemi models. Will not fit early 331/354/392 Hemi. This damper is supplied as a neutral balance damper with two counterweights with the damper. 1972-'78 383 & 400, '71 383 2-bbl and '74-'78 440 (cast crank engines only) use counterweight #91015. 1970-'71 440 6-bbl and the 1971 High Performance 440 use counterweight #91016. All other Chrysler big blocks require no weight. The damper also has two extra TDC marks for either the 426 street or race Hemi. To fit the Hemi, spacer #81013 is also required. This damper will not work on the 331, 354, or 392 early Hemi but basically fits all other big block Chrysler engines including the 351, 361, 383, 400, 413, 426 and 440. Complete instructions are included with the damper.
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.
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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.
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