Fluidampr Fluidampr Harmonic Balancer FORD 351 SM BLOCK


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Part #: 650201
Notes: Fluidampr Harmonic Balancer
MSRP: $541.27
Your Price: $397.19
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Specs

Bore Dia. Min/Max 1.374 / 1.375
Degree Marking Range 50 degress BTDC to 10 degree ATDC
Degree Markings Yes
Engine Balance Internal
Finish Black Zinc
Keyway Single (3/16")
Length 3.02
Material Steel
Mounting Hardware Incl. No
OD 6-5/8" (6.625)
Pulley Bolt Pattern 3-bolt, SVO V-6 engine style
Rotating Weight 10.3 (6.9 Rwt)
Safety Rating SFI 18.1

All Fitments

FORD
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1968 - 1968 302 SMALL BLOCK WINDSOR V8 5.0 ALL ALL ALL
1968 - 1979 302 SMALL BLOCK BASE V8 5.0 ALL ALL ALL
1980 - 2001 302 SMALL BLOCK BASE V8 5.0 ALL ALL ALL
1957 - 1979 351 SMALL BLOCK CLEVELAND V8 5.8 ALL ALL ALL
1969 - 1982 351 SMALL BLOCK WINDSOR V8 5.8 ALL ALL ALL
1977 - 1980 351 SMALL BLOCK MODIFIED V8 5.8 ALL ALL ALL
1980 - 1996 351 SMALL BLOCK CLEVELAND V8 5.8 ALL ALL ALL
1981 - 1982 351 SMALL BLOCK MODIFIED V8 5.8 ALL ALL ALL
1983 - 1997 351 SMALL BLOCK WINDSOR V8 5.8 ALL ALL ALL
1971 - 1979 400 SMALL BLOCK BASE V8 6.6 ALL ALL ALL
1980 - 1982 400 SMALL BLOCK BASE V8 6.6 ALL ALL ALL

Product Description

Fluidampr Engine Dampers are designed to control destructive vibrations which are transfered thru the crankshaft.

Each time the air/fuel mixture inside a cylinder is ignited, the combustion that occurs creates a torque spike that is applied to the crankshaft through the piston and rod. This torque spike is so severe that it not only turns the crankshaft, it actually twists the crankshaft ahead of its normal rotation and then the crankshaft rebounds. This twisting action is known as torsional vibration. When these torque spikes and forces get into phase with the natural frequency, critical torsional harmonic vibrations occur and can be seriously destructive to the bearings and the crankshaft. Dampers are designed to control those destructive vibrations.

Critical harmonic vibrations occur numerous times in a engine’s operating range. Stock rubber and elastomer-type dampers are frequency sensitive “tuned absorbers”, and work at only one critical frequency. In the case of a stock rubber damper, it is tuned for a factory engine’s critical harmonic vibrations. If you change the mass of pistons, rods, or the crankshaft, you change the natural frequency of the crankshaft assembly; therefore, the stock damper is no longer tuned to the new frequency of vibration, and you may be headed for early failure of expensive engine components. Dampers also create heat while they work, and rubber is a poor dissipator of heat. This heat and the exposure to the elements deteriorates rubber, causing it to crack and change durometer, which then leads to inertia ring slippage, damper failure, uncontrolled torsional vibration, and costly engine parts breakage.

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