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

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1951 Pontiac Chieftain Six Series 25
Catalina DeLuxe
Standard Specifications
  Show Summary  
Original Base Price $1,935.00
No. Produced 43,553
Body Maker Fisher
No. Doors 2
Passengers 6
Model Number
Weight 3,428lbs
Wheelbase 120 inches
Length 202.25 inches
Width 75 11/16 inches
Height 61.6 inches
Front Tread 58 1/16 inches
Rear Tread 59 1/16 inches
Type Inline, L-head
Displacement 239.2 cu. in.
Cylinders 6
Bore & Stroke 3 9/16 & 4 inches
Compression Ratio-Std 6.5 to 1
Compression Ratio-Opt
Brake Horsepower 96@3400
Rated Horsepower 30.4
Torque 191@1200
Main Bearings 4
Valve Lifters Mechanical
Block Material Chrome nickel
Engine Numbers Same as serial number
Engine No. Location On left front door pillar & on lip on left front of block.
Lubrication Pressure to all bearings excluding wrist pin
Type Single downdraft
Make Rochester
Type 3-speed manual, helical
Drive Rear wheel drive
No. Of Gears 3
Gear Ratios
1st 2.67 to 1
2nd 1.66 to 1
3rd 1 to 1
4th Not applicable
5th Not applicable
Reverse 3.02 to 1
Single plate dry disc
Clutch Size 9.5 inches
Semifloating
Hypoid
Differential Ratio 4.10 to 1
Front Independent coil springs
Rear Semi-elliptic leaf springs
Worm & roller
Service Bendix hydraulic drums
Front Size 11 inches
Rear Size 11 inches
Emergency Rear service brakes
Size 11 inches
Exhaust System Single
Ignition System Distributor and coil
Battery 6 volt storage battery
Cooling System Centrifugal pump with thermostat
Radiator Cellular
Fuel Type
Mileage
Wheel Type
Wheel Mfr
Wheel Size 15 x 5.5
Tire Type 4 ply
Tire Size 7.1 x 15
Spare Location Trunk
Fuel 17.5 Gallons
Oil 5 Quarts
Transmission 1.75 Pints
Cooling System 18 5/16 Quarts
Rear Differential 3.25 Pints
Front Differential Not applicable
Transfer Case Not applicable
Not Rated
VIN/Serial no. See Additional Information
VIN Description Total Digits: 9
Digits 1: Assembly plant
Digits 2: Engine
Digits 3: Model year
Digits 4: Transmission
Digits 5-9: Production number
VIN Location On left front door pillar & on lip on left front of block.
General VIN Decoder

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Additional Information
Serial Nos.: A6US1001 to A6US3282, F6US1001 to F6US3181, K6US1001 to K6UC6567, L6US1001 to L6US4133, P6US1001 to P6US24016, C6US1001 to C6US2519, W6US1001 to W6US4175, A6UH1001 to A6UH1416, F6UH1001 to F6UH1416, K6UH1001 to K6UH1954, L6UH1001 to L6UH1952, P6UH1001 to P6UH6543, C6UH1001 to C6UH1473, W6UH1001 to W6UH1562. No. produced includes all 6 cyl. models. Add'l 10,195 produced with Hydramatic trans.

1975 Oldsmobile Advance Ordering InformationDetroit Public Library (Nat'l Auto. Hist. Collctn)
5201 Woodward
Detroit MI 48202
(313) 833-1456
www.detroit.lib.mi.us/nahc/index.htm
Standard Catalog of American Cars 1946-1975 Krause Pub.Los Angeles Public Library
630 West Fifth Street
Los Angeles CA 90071
(213) 228-7000
www.lapl.org
The Production Figure Book for U.S. Cars Jerry HeasleyHorseless 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
Paint Type
Colors Two Tone Colors Available
Berkshire Green
Imperial Maroon
Sand Gray
Malibu Ivory
Tripoli Red
Yorkshire Gray
St. Clair Blue
PalMetallicto Green
Starmist Blue
Surf Gray
Sapphire
Sapphire No. 2
Saturn Gold
Victoria Maroon
Lido Beige
Standard/Optional Equipment
Hydra-Matic automatic transmissionOpt
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