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1956 Desoto Firedome Series S23
Convertible Coupe
Standard Specifications
  Show Summary  
Original Base Price $2,768.00
No. Produced
Body Maker Desoto
No. Doors 2
Passengers
Model Number
Weight 4,090lbs
Wheelbase 126 inches
Length 220.9 inches
Width 78.3 inches
Height 62.7 inches
Front Tread 60.4 inches
Rear Tread 59 5/8 inches
Type V8 Hemi, valve-in-head
Displacement 329.91 cu. in.
Cylinders 8
Bore & Stroke 3 23/32 & 3 51/64 inches
Compression Ratio-Std 8.5 to 1
Compression Ratio-Opt Not applicable
Brake Horsepower 230@4400
Rated Horsepower 44.25
Torque 305@2800
Main Bearings 4
Valve Lifters Hydraulic
Block Material
Engine Numbers S23-1001 to S23-79267
Engine No. Location On top front of block near water outlet.
Lubrication Pressure to all bearings excluding wrist pin
Type Dual downdraft
Make Ball and Ball
Type Helical
Drive Rear wheel drive
No. Of Gears 3
Gear Ratios
1st 2.5 to 1
2nd 1.68
3rd 1 to 1
4th Not applicable
5th Not applicable
Reverse 3.2
Single plate dry disc
Clutch Size 10 inches
Semifloating
Hypoid
Differential Ratio 3.90 to 1
Front Independent coil springs
Rear Semi-elliptic leaf springs
Worm & three tooth roller
Service 4 wheel hydraulic drum
Front Size 12 inches
Rear Size 12 inches
Emergency On the transmission
Size
Exhaust System Single
Ignition System Distributor and coil
Battery 12 volt storage battery
Cooling System Centrifugal pump with thermostat
Radiator Cellular
Fuel Type Regular
Mileage
Wheel Type
Wheel Mfr
Wheel Size
Tire Type
Tire Size 7.6 x 15
Spare Location Trunk
Fuel 21 Gallons
Oil 4 Quarts
Transmission 2.75 Pints
Cooling System 23 Quarts
Rear Differential 3.25 Pints
Front Differential Not applicable
Transfer Case Not applicable
Not Rated
VIN/Serial no. See Additional Information
VIN Description
VIN Location On left front door hinge post.
General VIN Decoder

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Additional Information
Serial Nos.: 55258001 to 55329506 & 64028001 to 64034406

Restorer's Guide Chrysler Corp 1987Detroit Public Library (Nat'l Auto. Hist. Collctn)
5201 Woodward
Detroit MI 48202
(313) 833-1456
www.detroit.lib.mi.us/nahc/index.htm
1956 De Soto Data BookDetroit Public Library (Nat'l Auto. Hist. Collctn)
Serial No. Book for US Cars 1900-1975 G. BrighamHorseless Carriage Foundation
8186 Center St. Suite F P.O. Box 4119
La Mesa CA 91944-4119
(619) 464-0301
www.hcfi.org
Motor Age November 1948Horseless Carriage Foundation
Motor Age April 1956Horseless Carriage Foundation
Paint Type Enamel
Colors All colors may not be available in all models.
Two Tone Colors Available
White
Dutch Blue
Lt Aqua
Pearl Gray
Iridescent Green Metallic
Shell Pink
Crimson
Iridescent Gray Metallic
Sage Green
Iridescent Blue Metallic
Iridescent Lavender Metallic
Sunny Yellow
Iridescent Plum Metallic
Adverturer Gold Metallic
Standard/Optional Equipment
Powerflite automatic transmissionOpt
Power steeringOpt
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