Specifications, Part & Services, Museums & Clubs for Antique, Classic, Vintage and Muscle Cars

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1921 Ambassador R Series
Sport
Standard Specifications
  Show Summary  
Original Base Price $4,500.00
No. Produced
Body Maker
No. Doors
Passengers 4
Model Number RF
Weight 4,200lbs
Wheelbase 136 inches
Length
Width
Height
Front Tread
Rear Tread
Type Continental 6T, L-head
Displacement 263.2 cu. in.
Cylinders 6
Bore & Stroke 3 5/8 & 4 1/4 inches
Compression Ratio-Std
Compression Ratio-Opt
Brake Horsepower 75
Rated Horsepower 31.5
Torque
Main Bearings 4
Valve Lifters
Block Material
Engine Numbers
Engine No. Location
Lubrication Pressure to all bearings excluding wrist pin
Type
Make Stromberg
Type Selective sliding gear
Drive
No. Of Gears 3
Gear Ratios
1st Unknown
2nd Unknown
3rd Unknown
4th Not applicable
5th Not applicable
Reverse Unknown
Multiple disk - dry plate
Clutch Size
Full floating
Spiral bevel
Differential Ratio 4.45 to 1
Front
Rear Semi-elliptic leaf springs
Screw & Nut
Service External contracting on rear wheels
Front Size Not applicable inches
Rear Size
Emergency Internal expanding on rear wheels
Size
Exhaust System
Ignition System Closed Circuit
Battery 6 volt storage battery
Cooling System Water pump
Radiator Tubular
Fuel Type
Mileage
Wheel Type
Wheel Mfr
Wheel Size
Tire Type
Tire Size
Spare Location
Fuel
Oil
Transmission
Cooling System
Rear Differential
Front Differential Not applicable
Transfer Case Not applicable
VIN/Serial no. 4101 to 4163
VIN Description
VIN Location
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Additional Information
Engine displacement for listed stroke should be 325.1

Paint Type Lacquer or enamel, optional
Colors
Standard/Optional Equipment
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