Hemi Engine Database
n/a Chrysler Industrial 331
Model Number: I/IND 20, 20A, 24, 24A, 56
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Size (cu-in)
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331
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Power (hp)
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180 @ 4600
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Torque (lb-ft)
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312 @ 2000
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Bore (in)
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3.8125
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Stroke (in)
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3.625
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Compression
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7.5:1
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Carburetor
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In Valves (in)
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Ex Valves (in)
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Firing Order
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1-8-4-3-6-5-7-2
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Left Bank
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1-3-5-7
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Right Bank
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2-4-6-8
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Dry Weight (lbs)
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Information from David Stall
with VictorySiren.com:
A.M.A. Horsepower: 46.5 horsepower
Valve Material: Silicon-chrome steel
Fuel: Regular grade
Pistons: Alum alloy, tin plated, streel strut-slipper type
Piston Rings: 2 compression, 1 oil
Top Ring: Chrome plated
Crankshaft: Drop forged steel, 5 bearings
Crankshaft Bearing: 2 1/2 in diameter
Camshaft: High strength cast iron, 5 bearings
Camshaft Drive: Silent chain
Lubrication: Pressure type
Oil Pump: Rotor type
Oil Capacity: 5 quarts
Oil Filter: Full flow
Ignition: Battery type
Distributor: Double breaker, splash proof
Spark Plugs: 14 mm resistor type
Starting: 6 volt electric
Generator: Regulator full voltage and current control
Carburetor: Dual venturi downdraft
Cooling Ssytem: Centrifugal pump type
Distributor: Model 1BB-4104-M
Cam Angle (Dwell): 27 1/2 to 30 degrees, one set of points
34 to 36 degrees total dwell
Gap: 0.015" to 0.018"
Breaker Arm Tension: 17 to 20 ozs
Condenser Capacity: 0.250 to 0.285 MFD
Rotation: Clockwise
Ignition Coil: Model CR6015
Amp Draw: 2.25 amps idling, 5.0 amps stopped
Starting Motor: Model M C L 6201M, 6 volts, 4 brushes
Spring Tension: 42 to 53 ozs
Generator Regulator: Model VAV 6001 B12F
Ground Polarity Positive
Voltage Regulator: Armature air gap .048 to .052, 7.2 to 7.5 volts
Generator: Model CGU 6001-R, 6 volt shunt wound, 2 brushes
Battery: Model MW-2-135R, 6 volts, 19 plates/cell, 135 amps
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