Official Release:
VINTAGE & LATE MODEL CHRYSLER/DODGE HARMONIC BALANCERS FOR 5.9L 360 V8 ENGINES
Dampens Torsional Vibrations and Harmful Engine Harmonics
Warren, MI: PROFORM’s new Chrysler/Dodge 360 Harmonic Balancers are designed to reduce wear on critical engine components by absorbing torsional vibrations and other harmonics generated by engine combustion and crankshaft rotation.
Crafted from durable nodular iron with an elastomer-style construction, these high-quality dampers are specifically built for high-RPM situations. Inadequate dampening in these scenarios can lead to serious engine damage, including crankshaft failure, premature bearing wear, and metal-to-metal contact, as well as problems with components such as oil pump gears, timing chains, and valve springs.
Part No. 66506 — LA 5.9L/360 V8 Engines (1972-94):
- Externally balanced with outside diameter: 7.100 inches
- Stock Keyway; Six pulley bolt holes
- Natural color with 30 BTDC to 0 TDC range degree markings
- 9.58 lbs. Weight
- Sold individually; no mounting hardware included
Part No. 66507 — Dodge Magnum 360 5.9L engines (1995-2004):
- Externally balanced with outside diameter: 7.250 inches
- Stock Keyway; Six pulley bolt holes
- Black painted with 30 BTDC to 0 TDC range degree markings
- 9.15 lbs. Weight
- Sold individually; no mounting hardware included
Note: The 5.9L Magnum has a different external balance and the damper is not interchangeable with older Chrysler LA-series 360 dampers (pre-Magnum) 1971–1992.
Unlock your engine’s true potential whether you’re restoring a street machine or fine-tuning a race engine, PROFORM harmonic balancers help your rotating assembly work smarter—not harder—for improved power output and engine durability. Check out proformparts.com to find out more and fuel your V8 today!
Key Features:
- Dampens the vibration from heavy torque.
- Key component to avoid crankshaft damage and other engine failures.
- Reduce engine wear, and lower the risk of crankshaft failure.
- Improve valvetrain stability.
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- Stacked from 2 images. Method=C (S=4)
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- Stacked from 2 images. Method=C (S=4)
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