Fluidampr Fluidampr Harmonic Balancer CHEVROLET ESTATE


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Part #: 720111
Notes: Fluidampr Harmonic Balancer
MSRP: $465.53
Your Price: $346.71
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Specs

Bore Dia. Min/Max 1.245 / 1.246
Degree Marking Range 50 BTDC to 10 ATDC. Additional timing/degree marks at 90, 180 and 270
Degree Markings Yes
Engine Balance External (26 oz)
Finish Black Zinc
Keyway Single
Length 2.335
Material Steel
Mounting Hardware Incl. No
O.D. 7-1/4" (7.250)
Safety Rating SFI 18.1
WT. in lbs.()=Rotating weight 13.7 (9.1 Rwt)

This Item Also Available In

Part Number Price Notes & Specs
790100 $230.11 Notes Streetdampr Harmonic Balancer
Bore Dia. Min/Max 1.245 / 1.246
Degree Marking Range 40 degree BTDC to 10 degree ATDC
Degree Markings Yes
Engine Balance External (26 oz)
Finish No Finish
Keyway Single
Length 2.335
Material Steel
Mounting Hardware Incl. No
O.D. 7-3/16" (7.188)
Safety Rating Not SFI Approved
WT. in lbs.()=Rotating weight 11.0 (8.2 Rwt)

All Fitments

CHEVROLET
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1970 - 1975 BEL AIR BASE V8 6.6 N ALL GAS
1970 - 1972 BISCAYNE BASE V8 6.6 N ALL GAS
1970 - 1972 BROOKWOOD BASE V8 6.6 N ALL GAS
1970 - 1972 C10 PICKUP BASE V8 6.6 N ALL GAS
1970 - 1972 C10 SUBURBAN BASE V8 6.6 N ALL GAS
1970 - 1972 C20 PICKUP BASE V8 6.6 N ALL GAS
1970 - 1972 C20 SUBURBAN BASE V8 6.6 N ALL GAS
1970 - 1972 C30 PICKUP BASE V8 6.6 N ALL GAS
1970 - 1972 CAMARO BASE V8 6.6 N ALL GAS
1970 - 1972 CAPRICE BASE V8 6.6 N ALL GAS
1970 - 1972 CHEVELLE BASE V8 6.6 N ALL GAS
1970 - 1976 EL CAMINO BASE V8 6.6 N ALL GAS
1970 - 1970 ESTATE BASE V8 6.6 N ALL GAS
1970 - 1976 IMPALA BASE V8 6.6 N ALL GAS
1970 - 1972 K10 PICKUP BASE V8 6.6 N ALL GAS
1970 - 1972 K10 SUBURBAN BASE V8 6.6 N ALL GAS
1970 - 1972 K20 PICKUP BASE V8 6.6 N ALL GAS
1970 - 1972 K20 SUBURBAN BASE V8 6.6 N ALL GAS
1970 - 1972 K30 PICKUP BASE V8 6.6 N ALL GAS
1975 - 1976 K5 BLAZER BASE V8 6.6 N ALL GAS
1970 - 1972 KINGSWOOD BASE V8 6.6 N ALL GAS
1973 - 1975 LAGUNA BASE V8 6.6 N ALL GAS
1973 - 1976 MALIBU BASE V8 6.6 N ALL GAS
1970 - 1974 MONTE CARLO BASE V8 6.6 N ALL GAS
1970 - 1972 NOVA BASE V8 6.6 N ALL GAS
1977 - 1977 P10 BASE V8 6.6 N ALL GAS
1976 - 1976 P30 BASE V8 6.6 N ALL GAS
1972 - 1972 P30 VAN BASE V8 6.6 N ALL GAS
1970 - 1972 TOWNSMAN BASE V8 6.6 N ALL GAS

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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