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1956 Nash Ambassador 8 Series 5680
Super Sedan
Standard Specifications
  Show Summary  
Original Base Price $2,716.00
No. Produced 3,885
Body Maker Nash
No. Doors 4
Passengers
Model Number 5685-1
Weight 3,748lbs
Wheelbase 121.3 inches
Length 209.3 inches
Width 78 inches
Height 63.9 inches
Front Tread 56.6 inches
Rear Tread 60.5 inches
Type V8, Valve-in-head
Displacement 351.86 cu. in.
Cylinders 8
Bore & Stroke 4 & 3 1/2 inches
Compression Ratio-Std 9.55 to 1
Compression Ratio-Opt Not applicable
Brake Horsepower 220@4800
Rated Horsepower 51.2
Torque 320@2350
Main Bearings 5
Valve Lifters Hydraulic
Block Material
Engine Numbers
Engine No. Location On top of block.
Lubrication Pressure to all bearings excluding wrist pin
Type Dual downdraft
Make Carter
Type Packard Ultramatic automatic
Drive Rear wheel drive
No. Of Gears 4
Gear Ratios
1st Not applicable
2nd Not applicable
3rd Not applicable
4th Not applicable
5th Not applicable
Reverse Not applicable
Not applicable
Clutch Size
Semifloating
Hypoid
Differential Ratio 3.15 to 1
Front Independent coil springs
Rear Coil springs
Worm & roller
Service 4 wheel hydraulic drum
Front Size 11 inches
Rear Size 11 inches
Emergency Rear service brakes
Size 11 inches
Exhaust System
Ignition System Distributor and coil
Battery 12 volt storage battery
Cooling System Centrifugal pump with thermostat
Radiator Fin and tube
Fuel Type Premium
Mileage
Wheel Type
Wheel Mfr
Wheel Size
Tire Type
Tire Size 7.6 x 15
Spare Location Trunk
Fuel 20 Gallons
Oil 5 Quarts
Transmission 11 Pints
Cooling System 27 Quarts
Rear Differential 4 Pints
Front Differential Not applicable
Transfer Case Not applicable
Not Rated
VIN/Serial no. V11501 to V16181
VIN Description
VIN Location Right side of dash under hood.
General VIN Decoder

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Additional Information
No. produced includes Super & Custom 4 door models in this series. Serial Nos.: V11501 to V16181 & Starting 16501

Technical Service Manual Models 541-542 MetropolitanLos Angeles Public Library
630 West Fifth Street
Los Angeles CA 90071
(213) 228-7000
www.lapl.org
1956 Tech Svc Man'l Supp Ambassador Special V-8 (NAP 56-5239)Horseless Carriage Foundation
8186 Center St. Suite F P.O. Box 4119
La Mesa CA 91944-4119
(619) 464-0301
www.hcfi.org
Serial No. Book for US Cars 1900-1975 G. BrighamHorseless Carriage Foundation
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
Bermuda Green
Sunburst Yellow
Willow Green
Polo Green
Mint Green
Solitaire Blue
Frost White
Pacific Blue
Crocus Yellow
Grenadier Red
Boulevard Gray
Ballerina Red
Golden Brown
Standard/Optional Equipment
Power steeringOpt
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