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| 1951 Buick Roadmaster Series 70 | ||
| Riviera Sedan | ||
| Standard Specifications | ||
| Show Summary |
| Original Base Price | $2,568.00 | |
| No. Produced | 48,758 | |
| Body | ||
| Body Maker | Fisher | |
| No. Doors | 4 | |
| Passengers | 6 | |
| Model Number | 72R | |
| Weight | 4,240lbs | |
| Dimension | ||
| Wheelbase | 126 13/64 inches | |
| Length | 211 inches | |
| Width | 80 inches | |
| Height | 63 19/64 inches | |
| Front Tread | 59 3/32 inches | |
| Rear Tread | 62 13/64 inches | |
| Engine | ||
| Type | OHV | |
| Displacement | 320.2 cu. in. | |
| Cylinders | 8 | |
| Bore & Stroke | 3 7/16 & 4 5/16 inches | |
| Compression Ratio-Std | 7.2 to 1 | |
| Compression Ratio-Opt | ||
| Brake Horsepower | 152@3600 | |
| Rated Horsepower | 37.8 | |
| Torque | 280@2000 | |
| Main Bearings | 5 | |
| Valve Lifters | Hydraulic | |
| Block Material | ||
| Engine Numbers | Starting 6240100-7 | |
| Engine No. Location | Boss on right side of crankcase near rear. | |
| Lubrication | Pressure to all bearings excluding wrist pin | |
| Carburetor | ||
| Type | Dual downdraft | |
| Make | Carter or Stromberg | |
| Transmission | ||
| 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 |
| Clutch Type | Not applicable | ||
| Clutch Size | |||
| Axle Type | Semifloating | ||
| Differential | Hypoid | ||
| Differential Ratio | 3.90 to 1 | ||
| Suspension | |||
| Front | Coil springs | ||
| Rear | Coil springs | ||
| Steering Gear | Ball bearing, worm & nut | ||
| Brakes | |||
| Service | Hydraulic drum | ||
| Front Size | 12 inches | ||
| Rear Size | 12 inches | ||
| Emergency | Rear service brakes | ||
| Size | 12 inches | ||
| Other Systems Specifications | |||
| Exhaust System | Single | ||
| Ignition System | Distributor and coil | ||
| Battery | 6 volt storage battery | ||
| Cooling System | Centrifugal pump with thermostat | ||
| Radiator | Vee cellular | ||
| Fuel Type | |||
| Mileage | |||
| Wheels, Rims & Tires | |||
| Wheel Type | |||
| Wheel Mfr | |||
| Wheel Size | 15 x 6.5 | ||
| Tire Type | 4 ply | ||
| Tire Size | 8 x 15 | ||
| Spare Location | Trunk | ||
| Capacities | |||
| Fuel | 19 Gallons | ||
| Oil | 8 Quarts | ||
| Transmission | 22 Pints | ||
| Cooling System | 18 Quarts | ||
| Rear Differential | 4 Pints | ||
| Front Differential | Not applicable | ||
| Transfer Case | Not applicable | ||
| Classic Rating | Not Rated | ||
| VIN/ID | |||
| VIN/Serial no. | See Additional Information | ||
| VIN Description | Total Digits: 8 | ||
| Digits 1: Assembly plant | |||
| Digits 2-8: Production number | |||
| VIN Location | Plate on left front door pillar & stamped on left front frame crossmember extension. | ||
|
| |||
| Additional Information | |||
| This model has a wheelbase of 130 1/4 inches. Serial Nos. 1-6031301 & up, 2-6050001 & up, 3-6055001 & up, 4-6061001 & up, 5-607001 & up, 6-6075001 & up, 7-6080001 & up. | |||
| References | |
| Engineering Data - Buick Motor Division (1951) | Detroit Public Library (Nat'l Auto. Hist. Collctn) 5201 Woodward Detroit MI 48202 (313) 833-1456 www.detroit.lib.mi.us/nahc/index.htm |
| Serial No. Book for US Cars 1900-1975 G. Brigham | Horseless Carriage Foundation 8186 Center St. Suite F P.O. Box 4119 La Mesa CA 91944-4119 (619) 464-0301 www.hcfi.org |
| Motor Age December 1945 | Los Angeles Public Library 630 West Fifth Street Los Angeles CA 90071 (213) 228-7000 www.lapl.org |
| Motor Age January 1951 | Horseless Carriage Foundation |
| Exterior Colors | ||
| Paint Type | ||
| Colors | Two Tone Colors Available | |
| Barton Gray | ||
| Victoria Maroon Poly. | ||
| Sharon Green Poly. | ||
| Cloudmist Gray Poly. | ||
| Carlsbad Black | ||
| Verde Green | ||
| Imperial Blue Poly. | ||
| Geneva Green Poly. | ||
| Olympic Blue Poly. | ||
| Old Ivory | ||
| CaluMetallic Green Poly. | ||
| Venetian Blue Poly. | ||
| Galena Blue Poly. | ||
| Glenn Green | ||
| Standard/Optional Equipment | ||
| Power windows | Std | |
| Power seats | Std | |
| Radio | Opt | |
| Heater and Defroster | Opt | |
| Rear Axle Ratio | Opt | |