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1974 Buick Century Regal Series 4AJ
Colonnade Hardtop Coupe
Standard Specifications
  Show Summary  
Original Base Price $3,984.00
No. Produced 57,512
Body Maker Fisher
No. Doors 2
Passengers
Model Number 4AJ57
Weight
Wheelbase 116 inches
Length 212 inches
Width 79 inches
Height 53.3 inches
Front Tread 59 inches
Rear Tread 59 inches
Type V8, valve-in-head
Displacement 350 cu. in.
Cylinders 8
Bore & Stroke 3.8 & 3.85 inches
Compression Ratio-Std 8.5 to 1
Compression Ratio-Opt
Brake Horsepower 150@3600
Rated Horsepower 46.2
Torque 270@2000
Main Bearings 5
Valve Lifters Hydraulic
Block Material Cast alloy iron
Engine Numbers Same as VIN production number sequence.
Engine No. Location Front of right bank of cylinders.
Lubrication Pressure to all bearings excluding wrist pin
Type Downdraft 4-barrel
Make Rochester
Type Turbo Hydra-matic
Drive Rear wheel drive
No. Of Gears 3
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 2.73 to 1
Front Independent ball joint with coil springs
Rear Coil link
Variable-ratio power
Service Front disc, rear self-adjusting drum
Front Size 11 inches
Rear Size 9.5 inches
Emergency Rear service brakes
Size 9.5 inches
Exhaust System Single
Ignition System Distributor and coil
Battery 12 volt storage battery
Cooling System Centrifugal water pump
Radiator Cross flow
Fuel Type Unleaded
Mileage
Wheel Type
Wheel Mfr
Wheel Size
Tire Type
Tire Size G78 x 14
Spare Location Trunk
Fuel 22 Gallons
Oil 4 Quarts
Transmission 23 Pints
Cooling System 15.625 Quarts
Rear Differential 2.9 Pints
Front Differential Not applicable
Transfer Case Not applicable
Not Rated
VIN/Serial no. 4J57J4-100001 and up
VIN Description Total Digits: 13
Digits 1: Make
Digits 2: Series
Digits 3-4: Body style
Digits 5: Engine
Digits 6: Model year
Digits 7: Assembly plant
Digits 8-13: Production number
VIN Location On plate on top of left side of dashboard, visible through windshield.
General VIN Decoder

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Additional Information
This model has a 112 inch wheelbase.

1974 Buick Product Selling InformationDetroit Public Library (Nat'l Auto. Hist. Collctn)
5201 Woodward
Detroit MI 48202
(313) 833-1456
www.detroit.lib.mi.us/nahc/index.htm
1974 Buick Service ManualLos Angeles Public Library
630 West Fifth Street
Los Angeles CA 90071
(213) 228-7000
www.lapl.org
The Buick - A Complete History by Dunham Gusten & Stf of Auto. QuarterlyHorseless 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
Automotive Industries April 1 1974Detroit Public Library (Nat'l Auto. Hist. Collctn)
Ward's Automotive Yearbook for 1974Detroit Public Library (Nat'l Auto. Hist. Collctn)
Automotive News (1974 Almanac Issue)Detroit Public Library (Nat'l Auto. Hist. Collctn)
Paint Type
Colors Regal Black
Arctic White
Midnight Blue Metallic
Medium Blue Metallic
Mediterranean Blue Metallic
Crystal Lake Blue Metallic
Mint Green
Ranch Green
Leaf Green Metallic
Forest Green Metallic
Sand Beige
Canary Yellow
Ginger
Goldmist Metallic
Nugget Gold
Nutmeg Metallic
Silver Cloud Metallic
Cinnamon Metallic
Dark Brown Metallic
Burgundy Metallic
Apple Red
Plum Metallic
All colors may not be available in all models.
Standard/Optional Equipment
455 cu. in. V8 engineOpt
Power windowsOpt
Air conditioningOpt
Power brakesOpt
Power seatsOpt
RadioOpt
Speed control deviceOpt
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