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CSP2026

Fluidampr 650401 - Pontiac 389 400 421 428 455 CID V-8 Steel Internally Balanced Damper

Fluidampr  |  SKU: FLUID-650401
Sale price $57482 Regular price $67626

DISCLAIMER: This Item Is Special Ordered, which may have cancellation or return restrictions. Please see our terms and conditions for more information.


AVAILABILITY: This Item Is Out Of Stock.


PLEASE NOTE: Pictures may be representative of style, rather than the actual product. Read the description for more details.

Description

Fluidampr 650401 - Pontiac 389 400 421 428 455 CID V-8 Steel Internally Balanced Damper

Harmonic Balancer - 6.625 in OD - Steel - Black Zinc - Internal Balance - Pontiac V8 - Each

Harmonic Balancer - Fluidampr - Pontiac / Oldsmobile - 1959 - 1979 V8 - Internal Balance - Steel - Black Zinc Chromate - 6-5/8" dia - 10.2 lbs - SFI 18.1 - Made in USA - Each

Protect your engine. Modifications can compromise your stock harmonic balancer. Install a Fluidampr performance damper early for best durability. Superior viscous damper design controls harmful torsional vibration across the entire rpm range. Reduce wear on engine components. Reduce risk of crankshaft failure. Improve timing. Unleash lost torque and horsepower. Precision CNC machined and balanced high-grade steel components. Corrosion resistant black zinc finish with engraved timing marks. No maintenance required. Trusted by leading engine builders worldwide. SFI 18.1 certified. Made in USA.

  • Broad RPM range protection.
  • Reduce risk of crankshaft failure.
  • Reduce wear on critical engine parts.
  • Unleash lost torque & horsepower.
  • No maintenance required.
  • Superior durability.
  • SFI 18.1 spec. Race proven for over 35 years.
  • Made in USA.
Bolt and Washer Included: No
Outside Diameter: 6-5/8"
Safety Rating: SFI 18.1
Pulley Bolt Pattern: 4 bolt pattern on 3.300 circle. Holes in pulley must be re-drilled. 1969-later timing cover and pulley may be required on earlier models.
Mounting Hole Quantity: 1
Degree Marking Range: 50 BTDC to 10 ATDC. Additional timing/degree marks at 90, 180 and 270
Material: Steel
Keyway Spec: Single; (3/16")
Inside Diameter: 1.372
Finish: Black Zinc
Engine Balance: Internal
Depth: 3.247
Degree Markings: Engraved
Weight / Rotating Weight: 10.2 lbs / 6.8 lbs
Bolt And Washer Included: No
Depth: 3.247
Grade Type: Performance
Inside Diameter: 1.372
Keyway Type: Yes
Mounting Hole Diameter: 1.372
Mounting Hole Quantity: 1
Outside Diameter: 6.625

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