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1956 Pontiac Chieftain 870 DeLuxe Series 56-27
Sedan
Standard Specifications
  Show Summary  
Original Base Price $2,167.00
No. Produced 22,082
Body Maker Fisher
No. Doors 4
Passengers 6
Model Number
Weight 3,496lbs
Wheelbase 122 inches
Length 205.6 inches
Width 75.1 inches
Height 60.5 inches
Front Tread 58.7 inches
Rear Tread 59.1 inches
Type V8, Valve-in-head
Displacement 316.59 cu. in.
Cylinders 8
Bore & Stroke 3 15/16 & 3 1/4 inches
Compression Ratio-Std 7.9 to 1
Compression Ratio-Opt Not applicable
Brake Horsepower 205@4600
Rated Horsepower 49.61
Torque 294@2600
Main Bearings 5
Valve Lifters Hydraulic
Block Material
Engine Numbers
Engine No. Location On pad at front of right side of block.
Lubrication Pressure to all bearings excluding wrist pin
Type Dual downdraft
Make Rochester
Type 3-speed manual, helical
Drive Rear wheel drive
No. Of Gears 3
Gear Ratios
1st 2.39 to 1
2nd 1.53 to 1
3rd 1 to 1
4th Not applicable
5th Not applicable
Reverse 2.53 to 1
Single plate dry disc
Clutch Size 10 inches
Semifloating
Hypoid
Differential Ratio 3.64 to 1
Front Independent coil springs
Rear Semi-elliptic leaf springs
Recirculating ball
Service 4 wheel hydraulic drum
Front Size 12 inches
Rear Size 11 inches
Emergency Rear service brakes
Size 11 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 7.1 x 15
Spare Location Trunk
Fuel 20 Gallons
Oil 5 Quarts
Transmission 2.5 Pints
Cooling System 22.7 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: 10
Digits 1: Assembly plant
Digits 2: Series
Digits 3-4: Model year
Digits 5: Transmission
Digits 6-10: Production number
VIN Location Plate on left front hinge pillar post.
General VIN Decoder

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Additional Information
Serial Nos.: A756S1001 to A756S3633, T756S1001 to T756S2383, F756S1001 to F756S3050, K756S1001 to K756S3526, L756S1001 to L756S3089, P756S1001 to P756S12449, C756S1001 to C756S3117, W756S1001 to W756S3139, A756H1001 to A756H22073, F756H1001 to F756H13307, K756H1001 to K756H27978, L756H1001 to L756H26487, P756H1001 to P756H97877, C756H1001 to C756H33138, W756H1001 to W756H26575, T756H1001 to T756H14815

1956 Pontiac Engineering InformationDetroit Public Library (Nat'l Auto. Hist. Collctn)
5201 Woodward
Detroit MI 48202
(313) 833-1456
www.detroit.lib.mi.us/nahc/index.htm
1956 Pontiac Shop ManualLos Angeles Public Library
630 West Fifth Street
Los Angeles CA 90071
(213) 228-7000
www.lapl.org
Standard Catalog of American Cars 1946-1975 Krause Pub.Los Angeles Public Library
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
Motor Age November 1948Horseless Carriage Foundation
Motor Age April 1956Horseless Carriage Foundation
Paint Type Lacquer
Colors Two Tone Colors Available
Winona Green Metallic
Tarragon Green
Vista Blue
Hialeah Green
Nimbus Gray
Sun Beige
Olympic Blue
Sandalwood Tan Metallic
Chesapeake Blue Metallic
Glendale Green Metallic
Amithyst Metalli-Chrome
Camellia
Phantom Gray Metallic
Grenada Gold
Catalina Blue Metallic
Bolero Red No. 2
Sun Beige
Sandalwood Tan Metallic
Sun Beige Metallic
Avalon Blue Metalli-Chrome
Kerry Green Metallic
Marina Blue
Rodeo Beige
Malabar Yellow
Lilac Metallic
Rodeo Beige
Standard/Optional Equipment
Powerglide automatic transmissionOpt
Power steeringOpt
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