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1955 Buick Roadmaster Series 70
Riviera Sedan
Standard Specifications
  Show Summary  
Original Base Price $3,047.00
No. Produced 31,717
Body Maker Fisher
No. Doors 4
Passengers 6
Model Number 72
Weight 4,300lbs
Wheelbase 127 inches
Length 216 inches
Width 80 inches
Height 64.3 inches
Front Tread 59 inches
Rear Tread 62.2 inches
Type V8, Valve-in-head
Displacement 322 cu. in.
Cylinders 8
Bore & Stroke 4 & 3 13/64 inches
Compression Ratio-Std 9.0 to 1
Compression Ratio-Opt Not applicable
Brake Horsepower 236@4600
Rated Horsepower 51.20
Torque 330@3000
Main Bearings 5
Valve Lifters Hydraulic
Block Material
Engine Numbers Starting V720080-7
Engine No. Location On left cylinder bank, just below head.
Lubrication Pressure to all bearings excluding wrist pin
Type Downdraft 4-barrel
Make Carter or Rochester
Type Dynaflow 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 3.40 to 1
Front Independent coil springs
Rear Coil springs
Power hydraulic
Service 4 wheel hydraulic drum
Front Size 12 inches
Rear Size 12 inches
Emergency Rear service brakes
Size 12 inches
Exhaust System Single
Ignition System Distributor and coil
Battery 12 volt storage battery
Cooling System Centrifugal pump with thermostat
Radiator Cellular
Fuel Type Premium
Mileage
Wheel Type
Wheel Mfr
Wheel Size
Tire Type
Tire Size 8 x 15
Spare Location Trunk
Fuel 19 Gallons
Oil 6 Quarts
Transmission 10 Pints
Cooling System 18.5 Quarts
Rear Differential 4.5 Pints
Front Differential Not applicable
Transfer Case Not applicable
Not Rated
VIN/Serial no. See Additional Information
VIN Description Total Digits: 9
Digits 1: Series
Digits 2: Model year
Digits 3: Assembly plant
Digits 4-9: Production number
VIN Location Plate on left front door pillar & stamped on left front frame crossmember extension.
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Additional Information
Serial Nos. 7B1001001 to 7B1244927, 7B2001001 to 7B2087498, 7B3001001 to 7B3093179, 7B4001001 to 7B4094934, 7B5001001 to 7B5068578, 7B6001001 to 7B6070979, 7B7001001 to 7B7037771, 7B8001001 to 7B8049469.

Buick Facts for 1955Detroit Public Library (Nat'l Auto. Hist. Collctn)
5201 Woodward
Detroit MI 48202
(313) 833-1456
www.detroit.lib.mi.us/nahc/index.htm
1955 Buick Shop ManualDetroit 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 January 1955Horseless Carriage Foundation
Motor Age July 1955Detroit Public Library (Nat'l Auto. Hist. Collctn)
Paint Type Lacquer
Colors Two Tone Colors Available
Three Tone Colors Available
Dover White
Windsor Gray Poly
Victoria Blue Poly.
Belfast Green Poly.
Gulf Turquoise
Cameo Beige
Temple Gray
Cascade Blue
Stafford Blue Poly
Galway Green
Cherokee Red
Carlsbad Black
Willow Green
Titian Red Poly
Condor Yellow
Standard/Optional Equipment
Power windowsOpt
Air conditioningOpt
Power brakesOpt
Power steeringStd
Power seatsOpt
RadioOpt
Heater and DefrosterOpt
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