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| 1975 Buick Century Custom Series 4AH & 4AK | ||
| Sedan | ||
| Standard Specifications | ||
| Show Summary |
| Original Base Price | $4,211.00 | |
| No. Produced | 9,995 | |
| Body | ||
| Body Maker | Fisher | |
| No. Doors | 4 | |
| Passengers | ||
| Model Number | 4AH29 | |
| Weight | ||
| Dimension | ||
| Wheelbase | 116 inches | |
| Length | 213.5 inches | |
| Width | 79 inches | |
| Height | 54.1 inches | |
| Front Tread | 61.1 inches | |
| Rear Tread | 59 inches | |
| Engine | ||
| Type | V6 overhead valve | |
| Displacement | 231 cu. in. | |
| Cylinders | 6 | |
| Bore & Stroke | 3.8 & 3.4 inches | |
| Compression Ratio-Std | 8.0 to 1 | |
| Compression Ratio-Opt | ||
| Brake Horsepower | 110@4000 | |
| Rated Horsepower | 34.66 | |
| Torque | 175@2000 | |
| Main Bearings | ||
| Valve Lifters | Hydraulic | |
| Block Material | Cast Iron | |
| Engine Numbers | Same as VIN production number sequence. | |
| Engine No. Location | ||
| Lubrication | Pressure to all bearings excluding wrist pin | |
| Carburetor | ||
| Type | Dual downdraft | |
| Make | Rochester | |
| Transmission | ||
| Type | Fully synchronized | |
| Drive | Rear wheel drive | |
| No. Of Gears | 3 | |
| Gear Ratios | ||
| 1st | 3.11 to 1 | |
| 2nd | 1.84 | |
| 3rd | 1 to 1 | |
| 4th | Not applicable | |
| 5th | Not applicable | |
| Reverse | 3.22 |
| Clutch Type | Single plate dry disc | ||
| Clutch Size | 9.125 inches | ||
| Axle Type | Semifloating | ||
| Differential | Hypoid | ||
| Differential Ratio | 2.93 to 1 | ||
| Suspension | |||
| Front | Independent ball joint with coil springs | ||
| Rear | Coil link | ||
| Steering Gear | Variable-ratio power | ||
| Brakes | |||
| Service | Front disc, rear self-adjusting drum | ||
| Front Size | 11 inches | ||
| Rear Size | 9.5 inches | ||
| Emergency | Rear service brakes | ||
| Size | 9.5 inches | ||
| Other Systems Specifications | |||
| Exhaust System | Single | ||
| Ignition System | Distributor and coil | ||
| Battery | 12 volt storage battery | ||
| Cooling System | Water pump | ||
| Radiator | Cross flow | ||
| Fuel Type | Unleaded | ||
| Mileage | |||
| Wheels, Rims & Tires | |||
| Wheel Type | |||
| Wheel Mfr | |||
| Wheel Size | |||
| Tire Type | |||
| Tire Size | GR78 x 15 | ||
| Spare Location | Trunk | ||
| Capacities | |||
| Fuel | 22 Gallons | ||
| Oil | 4 Quarts | ||
| Transmission | 3.5 Pints | ||
| Cooling System | 15.35 Quarts | ||
| Rear Differential | 2.9 Pints | ||
| Front Differential | Not applicable | ||
| Transfer Case | Not applicable | ||
| Classic Rating | Not Rated | ||
| VIN/ID | |||
| VIN/Serial no. | 4H29C5-100001 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. | ||
|
| |||
| Additional Information | |||
| References | |
| 1975 Buick Chassis Service Manual | Los 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. Quarterly | Horseless 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. Brigham | Horseless Carriage Foundation |
| Ward's Automotive Yearbook for 1975 | Detroit Public Library (Nat'l Auto. Hist. Collctn) 5201 Woodward Detroit MI 48202 (313) 833-1456 www.detroit.lib.mi.us/nahc/index.htm |
| Motor Age December 1974 | Detroit Public Library (Nat'l Auto. Hist. Collctn) |
| Automotive News (1975 Almanac Issue) | Detroit Public Library (Nat'l Auto. Hist. Collctn) |
| Exterior Colors | ||
| Paint Type | ||
| Colors | Regal Black | |
| Arctic White | ||
| Sandstone | ||
| Silver Mist Metallic | ||
| Dove Gray | ||
| Pewter Metallic | ||
| Antique Silver Metallic | ||
| Horizon Blue Metallic | ||
| Glacier Blue | ||
| Majestic Blue Metallic | ||
| Blue Haze Metallic | ||
| Indigo Metallic | ||
| Ranch Green | ||
| Verde Mist Metallic | ||
| Sand Beige | ||
| Canary Yellow | ||
| Walnut Mist Metallic | ||
| Honey Gold Metallic | ||
| Almond Mist Metallic | ||
| Golden Tan Metallic | ||
| Bittersweet Metallic | ||
| Ruby Red | ||
| Burgundy Metallic | ||
| Apple Red | ||
| Rhone Red Metallic | ||
| Pumpkin Metallic | ||
| All colors may not be available in all models. | ||
| Standard/Optional Equipment | ||
| 350 cu. in. V8 engine | Opt | |
| Power windows | Opt | |
| Air conditioning | Opt | |
| Power brakes | Opt | |
| Power seats | Opt | |
| Radio | Opt | |
| Speed control device | Opt | |