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Part number: 720311
Product Details
Fluidampr 720311 Pulley Kits
Products specifications
Balance Style Neutral
Bore Dia. Min/Max 1.5295 / 1.5305
Degree Marking Range 50 BTDC to 10 ATDC
Degree Markings Yes
Engine Balance Internal
Finish Black Zinc
Harmonic Balancer Construction Fluid
Harmonic Balancer Finish Black zinc chromate
Harmonic Balancer Material Steel
Keyway Single
Length 2.215
Material STEEL
Mounting Hardware Incl. No
Mounting Hardware Included No
Notes Additional timing/degree marks at 90, 180, and 270 degrees.
OD 7-1/4" (7.250)
Outside Diameter (in) 7.250 in.
Pulley Bolt Pattern 6 bolt holes, evenly spaced pattern
Quantity Sold individually.
Rotating Weight 11.9 (7.9 Rwt)
Safety Rating SFI 18.1
Performance Series Dampr
Internally Balanced

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 engines 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 engines 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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I was hesitant to order from Autoplicity due to the perception that the price was too good to be real (and not some scam). However, I read a few reviews on the internet and decided to take a chance. Once I placed my order I was sent a tracking number and received my car parts within 2 weeks. I was happy that I got the parts I ordered and the price was really low. Simple and quick.
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Fitment
Chrysler 300
1971 Chrysler 300 ALL
1970 Chrysler 300 ALL
1969 Chrysler 300 ALL
1968 Chrysler 300 ALL
1967 Chrysler 300 ALL
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1965 Chrysler 300 ALL
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1963 Chrysler 300 ALL
1962 Chrysler 300 ALL
Chrysler Ford 300
1971 Chrysler Ford 300 ALL
1970 Chrysler Ford 300 ALL
1969 Chrysler Ford 300 ALL
1968 Chrysler Ford 300 ALL
1967 Chrysler Ford 300 ALL
1966 Chrysler Ford 300 ALL
1965 Chrysler Ford 300 ALL
1964 Chrysler Ford 300 ALL
1963 Chrysler Ford 300 ALL
1962 Chrysler Ford 300 ALL
Chrysler Imperial
1975 Chrysler Imperial ALL / Crown / LeBaron
1974 Chrysler Imperial ALL / Crown / LeBaron
1973 Chrysler Imperial ALL / Crown / LeBaron
1972 Chrysler Imperial ALL / Crown / LeBaron
1971 Chrysler Imperial ALL / Crown / LeBaron
1970 Chrysler Imperial ALL / Crown / LeBaron
1969 Chrysler Imperial ALL / Crown / LeBaron
1968 Chrysler Imperial ALL / Crown / LeBaron
1967 Chrysler Imperial ALL / Base / Crown
1966 Chrysler Imperial ALL / Base / Crown
Chrysler New Yorker
1978 Chrysler New Yorker Brougham
1977 Chrysler New Yorker Brougham
1976 Chrysler New Yorker Brougham
1975 Chrysler New Yorker Brougham
1974 Chrysler New Yorker ALL / Base / Brougham
1973 Chrysler New Yorker ALL / Base / Brougham
1972 Chrysler New Yorker ALL / Base / Brougham
1971 Chrysler New Yorker ALL / Base / Brougham
1970 Chrysler New Yorker ALL / Base / Brougham
1969 Chrysler New Yorker ALL / Base / Brougham
1968 Chrysler New Yorker ALL / Base / Brougham
1967 Chrysler New Yorker ALL / Base / Brougham
1966 Chrysler New Yorker ALL / Base / Brougham
Chrysler Newport
1978 Chrysler Newport ALL / Base / Custom / Royal
1977 Chrysler Newport ALL / Base / Custom / Royal
1976 Chrysler Newport ALL / Base / Custom / Royal
1975 Chrysler Newport ALL / Base / Custom / Royal
1974 Chrysler Newport ALL / Base / Custom / Royal
1973 Chrysler Newport ALL / Base / Custom / Royal
1972 Chrysler Newport ALL / Base / Custom / Royal
1971 Chrysler Newport ALL / Base / Custom / Royal
1970 Chrysler Newport ALL / Base / Custom / Royal
1969 Chrysler Newport ALL / Base / Custom / Royal
1968 Chrysler Newport ALL / Base / Custom / Royal
1967 Chrysler Newport ALL / Base / Custom / Royal
1966 Chrysler Newport ALL / Base / Custom / Royal
1965 Chrysler Newport ALL / Base / Custom / Royal
Chrysler Saratoga
1960 Chrysler Saratoga ALL / Base
1959 Chrysler Saratoga ALL / Base
Chrysler Town & Country
1977 Chrysler Town & Country ALL / Base
1976 Chrysler Town & Country ALL / Base
1975 Chrysler Town & Country ALL / Base
1974 Chrysler Town & Country ALL / Base
1973 Chrysler Town & Country ALL / Base
1972 Chrysler Town & Country ALL / Base
1971 Chrysler Town & Country ALL / Base
1970 Chrysler Town & Country ALL / Base
1969 Chrysler Town & Country ALL / Base
1968 Chrysler Town & Country ALL / Base
1967 Chrysler Town & Country ALL / Base
1966 Chrysler Town & Country ALL / Base
1965 Chrysler Town & Country ALL / Base
1964 Chrysler Town & Country ALL / Base
1963 Chrysler Town & Country ALL / Base
1962 Chrysler Town & Country ALL / Base
1961 Chrysler Town & Country ALL / Base
1960 Chrysler Town & Country ALL / Base
1959 Chrysler Town & Country ALL / Base
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