Fluidampr · New
Fluidampr Chevy 396 - 427 CID V-8 Steel Internally Balanced Damper
MPN 720121 · Store SKU fdr720121
Supplier stock checked 11/7/2026, 9:18:22 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
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Product details
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. Harmonic Balancer - Fluidampr - Big Block Chevy - Internal Balance - Steel - Black Zinc Chromate - 7-1/4" dia - 12.8 lbs - SFI 18.1 - Made in USA - Each Harmonic Balancer - Fluidampr - BBC - 7-1/4" dia - Int Balance - Each
Manufacturer fitment & guides
Check 720121 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
