Fluidampr (650401)
8152930011804 interest-free payments or as low as $—/mo with Affirm. See if you qualify
Compatibility
- Platform
- Universal — verify fitment for your application
- Vehicle-specific fitment
- Review application details below
- Need help?
- Confirm fitment with us before ordering — (714) 202-7886
We list the engine platform a part is built for. That is not year-and-trim application data, so it does not confirm a fit on your specific vehicle.
- Est. install labor: 3.0 hrs — $375 at $125/hr. Pick Install at HRC and a 20% labor deposit ($75) is due at checkout; the balance is due at completion.
- An estimate for a stock vehicle, not a quote — we confirm it in writing when you book, before any labor is authorized. Seized hardware, prior modifications, diagnosis and machine work are quoted separately; tuning is arranged through our tuning partner. Questions: (714) 202-7886.
- Warranty & track disclaimer — read before you race it.
- Shipping & returns — rates and RMA terms.
- Installed in-house in Huntington Beach, CA — labor & service policy.
- Affirm and PayPal available at checkout.
More ways to pay at checkout
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.
| Part Type | Engine Harmonic Balancer |
|---|---|
| Bolt and Washer Included | No |
| Outside Diameter | 6-5/8" |
| Title | Fluidampr - 650401 - Harmonic Balancer - Fluidampr - Pontiac / Oldsmobile - V8 - Int Balance - Each |
| 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. |
| Prop 65 Yes/No | Yes |
| Prop 65 (C, R, or CR) | CR |
| Prop 65 - Short Label | WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov |
| 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 |
| 6597 | No |
| 806 | 3.247" |
| 3390 | Performance |
| 18 | 1.372" |
| 6637 | Yes |
| 835 | 1.372" |
| 356 | 1 |
| 25 | 6.625" |
| Weight | 10.2 lb |
| UPC | 815293001180 |
| Country of Origin | USA |
Verified fitment · 457 applications
- Oldsmobile 442 6.6L (1965–1969)
- Oldsmobile 442 7.5L (1968–1971)
- Oldsmobile 98 6.6L (1975)
- Oldsmobile 98 7.5L (1968–1976)
- Oldsmobile Custom Cruiser 6.6L (1975)
- Oldsmobile Custom Cruiser 7.5L (1971–1976)
- Oldsmobile Cutlass 6.6L (1965–1968)
- Oldsmobile Cutlass 7.5L (1970–1976)
- Oldsmobile Cutlass Salon 7.5L (1975–1976)
- Oldsmobile Cutlass Supreme 7.5L (1971–1976)
- Oldsmobile Cutlass Tiara 7.5L (1976)
- Oldsmobile Delmont 88 7.5L (1968)
- Oldsmobile Delta 88 6.6L (1975)
- Oldsmobile Delta 88 7.5L (1968–1976)
- Oldsmobile F85 6.6L (1965–1966)
- Oldsmobile F85 7.5L (1970–1972)
- Oldsmobile Toronado 7.5L (1968–1976)
- Oldsmobile Vista Cruiser 6.6L (1968–1969)
- Oldsmobile Vista Cruiser 7.5L (1970–1975)
- Pontiac Bonneville 6.4L (1959–1966)
- Pontiac Bonneville 6.6L (1967–1978)
- Pontiac Bonneville 6.9L (1963–1966)
- Pontiac Bonneville 7.0L (1967–1969)
- Pontiac Bonneville 7.5L (1970–1976)
- Pontiac Catalina 6.4L (1959–1966)
- Pontiac Catalina 6.6L (1967–1978)
- Pontiac Catalina 6.9L (1961–1966)
- Pontiac Catalina 7.0L (1967–1969)
- Pontiac Catalina 7.5L (1970–1976)
- Pontiac Executive 6.6L (1967–1970)
- Pontiac Executive 7.0L (1967–1969)
- Pontiac Executive 7.5L (1970)
- Pontiac Firebird 5.3L (1967)
- Pontiac Firebird 6.6L (1967–1979)
- Pontiac Firebird 7.5L (1971–1976)
- Pontiac GTO 6.4L (1964–1966)
- Pontiac GTO 6.6L (1967–1973)
- Pontiac GTO 7.5L (1970–1973)
- Pontiac Grand Am 6.6L (1973–1975)
- Pontiac Grand Am 7.5L (1973–1975)
- Pontiac Grand LeMans 6.6L (1975–1977)
- Pontiac Grand LeMans 7.5L (1975–1976)
- Pontiac Grand Prix 6.4L (1962–1966)
- Pontiac Grand Prix 6.6L (1967–1977)
- Pontiac Grand Prix 6.9L (1963–1966)
- Pontiac Grand Prix 7.0L (1967–1969)
- Pontiac Grand Prix 7.5L (1970–1976)
- Pontiac Grand Safari 6.6L (1971–1978)
- Pontiac Grand Safari 7.5L (1971–1976)
- Pontiac Grandville 6.6L (1972–1975)
- Pontiac Grandville 7.5L (1971–1975)
- Pontiac LeMans 5.3L (1963–1967)
- Pontiac LeMans 6.6L (1968–1977)
- Pontiac LeMans 7.5L (1970–1976)
- Pontiac Star Chief 6.4L (1959–1966)
- Pontiac Star Chief 6.9L (1963–1966)
- Pontiac Tempest 5.3L (1963–1967)
- Pontiac Tempest 6.6L (1968–1970)
- Pontiac Ventura 6.4L (1960–1961)
- Pontiac Ventura 6.9L (1961)
| Part No. | 650401 |
|---|---|
| Brand | Fluidampr |
| Part Type | Engine Harmonic Balancer |
| Weight | 10.2 lb |
| UPC | 815293001180 |
| Country of Origin | USA |
Platform-level fitment (Ford + GM, Phase 1). We publish the engine platform a part is built for — not year-and-trim application data — so nothing here confirms a fit on a specific vehicle. Confirm fitment with us before ordering: (714) 202-7886.