When World War II ended in 1945, American automobile manufacturers faced unprecedented demand. After years of rationing, sacrifice, and military production, Americans were eager to buy new cars—and automakers scrambled to meet this “pent-up demand.” The 1947 Buick Super Model 51 stands as an excellent example of post-war American motoring: spacious, comfortable, affordable, and powered by one of the industry’s most legendary engines.
The Post-War Context
From 1942 through 1945, civilian automobile production in America completely ceased as factories converted to military production. When the war ended, automakers couldn’t simply flip a switch and resume where they’d left off. Retooling took time, materials were still scarce, and consumer demand was overwhelming.
Buick was fortunate. The company had redesigned much of its line for 1942, introducing modern styling and improved engineering. When production resumed in late 1945 for the 1946 model year, Buick simply updated these pre-war designs with light facelifts and new trim. This allowed the company to get quality products to market quickly while competitors struggled with outdated designs.
The 1947 model year represented Buick’s first full year of post-war production, and demand remained insatiable. The Buick Super, positioned in the middle of Buick’s lineup, proved to be exactly what American buyers wanted.
What Was the Buick Super?
The Buick Super was the company’s mid-level offering, slotted between the entry-level Special and the top-tier Roadmaster. This positioning gave the Super an appealing combination: Roadmaster size and comfort with Special-level economy and affordability.
Buick’s 1947 Lineup:
- Special (Series 40): Entry-level, smaller, most affordable
- Super (Series 50): Mid-level, full-size comfort, best value ← Model 51 lives here
- Roadmaster (Series 70): Top-tier, largest engine, premium features
The genius of the Super was its value proposition. Buyers got a car as large as the Roadmaster—meaning full-size comfort and presence—but with the smaller, more economical engine from the Special. This made the Super incredibly popular. In 1947, Buick produced 151,759 Super models out of a total production of 272,827 vehicles. That means the Super accounted for more than 55% of all Buicks built that year.
Design and Styling
The 1947 Buick Super featured the curvaceous, flowing design language that defined 1940s American automobiles. Gone were the separate fenders and running boards of the 1930s. Instead, the Super integrated fenders into the body, creating smooth, uninterrupted lines from front to rear.
Key Design Elements:
The Grille: For 1947, Buick gave the Super a revised grille that was more handsome than the 1946 design. Vertical chrome bars created a bold face that immediately identified the car as a Buick.
Body Lines: Smooth, flowing fenders with integrated headlamps and rear fender skirts created an elegant profile. The design looked modern and streamlined without being radical.
Proportions: With a 124-inch wheelbase and overall length of approximately 212 inches, the Super had substantial road presence. The long hood, passenger compartment, and short rear deck created balanced proportions.
Trim and Details: Chrome bumpers, window surrounds, and body trim provided contrast and visual interest. The Super featured distinctive series identification on the bumper guard crossbar.
Colors: Post-war Buicks were available in a variety of colors, from conservative dark tones to more adventurous hues like the turquoise that some survivors wear today. These colors, combined with chrome accents, gave the cars personality and style.
The Legendary Fireball Straight-Eight Engine
Under that long hood lived one of the most celebrated engines in automotive history: Buick’s Fireball straight-eight.
Engine Specifications (1947 Super Model 51)
Displacement: 248 cubic inches (4.1 liters) Configuration: Inline 8-cylinder Valve Design: Overhead valve (OHV) – revolutionary for the era Horsepower: 110 hp Compression Ratio: 6.30:1 Carburetion: Single downdraft carburetor Features: Full-pressure lubrication, automatic choke
Why the Fireball Was Special
Buick had been building straight-eight engines since 1931, and by 1947, the design was mature, refined, and proven. Several features made the Fireball stand out:
Overhead Valves: While many competitors still used flathead (side-valve) designs, Buick pioneered overhead valve configuration in production engines. This design allowed for better breathing, more power, and greater efficiency. The valve-in-head design was so advanced that Buick used it from the company’s inception.
Smoothness: Eight cylinders firing in sequence created incredibly smooth operation. The straight-eight configuration was inherently balanced, meaning minimal vibration. Drivers appreciated the refined, silent power delivery.
Reliability: By 1947, Buick had been refining the straight-eight for 16 years. The engines were robust, with rugged construction that established Buick’s reputation for longevity. Many of these engines ran for hundreds of thousands of miles with regular maintenance.
Torque: While 110 horsepower may not sound impressive by modern standards, the Fireball produced substantial low-end torque. This made the Super feel strong and responsive in real-world driving, especially at the moderate speeds typical of the era.
Engineering Refinements: Starting in mid-1947, Buick introduced full precision insert bearings on the crankshaft, replacing the older poured babbit bearings. This made the engines easier to service and more durable.
Real-World Performance
The 248-cubic-inch Fireball provided adequate performance for a car weighing nearly 4,000 pounds. Top speed was around 85-90 mph, with comfortable cruising at 50-60 mph. Acceleration was leisurely by modern standards but perfectly acceptable for the era.
Fuel economy was reasonable for such a large car, typically averaging 12-16 mpg depending on driving conditions. The single carburetor and relatively low compression ratio contributed to good fuel efficiency compared to larger-engined competitors.
Transmission and Drivetrain
The 1947 Buick Super came standard with a three-speed manual transmission featuring a column-mounted shift lever. This configuration freed up space in the front bench seat, allowing three passengers to sit comfortably.
Transmission Details:
- Type: Three-speed manual
- Shift Location: Column-mounted (steering column)
- Synchronization: Synchromesh on second and third gears
- Clutch: Single dry-disc
The column shift became standard across the American industry in the late 1930s and remained common through the 1960s. It took some getting used to for drivers accustomed to floor shifters, but it was practical and functional.
Rear Axle: The Super used a live rear axle with semi-elliptic leaf springs. The rear-wheel-drive layout was universal in American cars of the era.
Chassis and Suspension
Wheelbase: 124 inches Overall Length: 212.38 inches Width: Approximately 75 inches Weight: 3,800-4,000 pounds (depending on body style)
Front Suspension: Independent front suspension with coil springs provided a comfortable ride. This was modern engineering for the era, giving the Super better handling and ride quality than solid front axle designs.
Rear Suspension: Live rear axle with semi-elliptic leaf springs. While less sophisticated than independent designs, this proven system was durable and easy to maintain.
Brakes: Four-wheel hydraulic drum brakes provided stopping power. While not as effective as modern disc brakes, they were adequate for the car’s performance envelope and represented good technology for 1947.
Tires: Original equipment tires were 6.50 x 16 bias-ply. Many surviving examples now wear radial tires in equivalent sizes, which dramatically improve handling and ride quality.
Body Styles and Model Variations
The 1947 Buick Super offered four distinct body styles, giving buyers options to suit their needs and preferences:
Four-Door Sedan (Model 51)
The most popular body style by far. The sedan offered seating for six passengers, with bench seats front and rear. This was the practical choice for families and represented the bulk of Super production.
Features:
- Seating for 6
- Four conventional doors
- Spacious trunk
- Available in various colors
- Price: Approximately $1,845 (about $25,000 in today’s dollars)
Two-Door Sedanet
A sportier alternative with fastback styling. The sedanet featured a sleek roofline that flowed smoothly into the rear deck, creating a more youthful appearance.
Features:
- Seating for 5-6
- Two doors with longer doors for easier rear access
- Fastback styling
- Slightly sportier image
- Price: Slightly more than the sedan
Convertible Coupe
The glamorous option. Post-war America was optimistic and prosperous, and convertibles represented freedom and style.
Features:
- Power-operated top (standard equipment)
- Seating for 5-6
- Premium interior trim
- Most expensive Super model
- Relatively rare today
- Price: Approximately $2,593
Estate Wagon
The practical choice for families needing cargo capacity. The Estate Wagon featured wood paneling on the exterior—a styling element popular in the era.
Features:
- Wooden body panels (structural steel with wood trim)
- Large cargo area with tailgate
- Seating for 6-8 depending on configuration
- Unique styling with wood accents
- Most versatile Super model
- Exclusive to Super line in 1947
Standard Equipment and Features
The 1947 Buick Super came well-equipped for its price point. Standard features included:
Interior Amenities:
- Clock mounted in the dashboard
- Automatic choke for easier cold starts
- Heater and defroster
- Floor mats (front and rear)
- Woodgrain instrument panel trim
- Firm, supportive seats upholstered in Bedford cord cloth
- Rear fender skirts
Exterior Features:
- Chrome bumpers front and rear with guards
- Dual taillights
- Full wheel covers
- Rear fender skirts (standard)
- Series identification badges
Mechanical Features:
- Four-wheel hydraulic brakes
- Full-pressure lubrication system
- Oil filter
- Generator for electrical charging
- 6-volt electrical system
Living with a 1947 Buick Super Today
Driving Experience
The 1947 Super drives like the large, comfortable car it is. Modern drivers need to adjust to several differences from contemporary vehicles:
Steering: The steering is slow and requires multiple turns lock-to-lock. There’s no power assist, so parking requires some muscle, but at highway speeds the car feels stable and tracks well.
Brakes: Drum brakes require more pedal pressure and more distance to stop than modern disc brakes. Drivers need to plan ahead and brake earlier.
Acceleration: Don’t expect modern performance. The Super accelerates deliberately, but the torquey straight-eight provides smooth, confident power for highway cruising.
Ride Quality: The soft suspension creates a floating, comfortable ride that soaks up bumps easily. The car can feel wallowy in corners, but this was acceptable—even desirable—for buyers in 1947.
Visibility: Excellent! The large windows and relatively thin pillars provide great sightlines in all directions.
Reliability and Maintenance
With proper care, the Fireball straight-eight is remarkably reliable. These engines were built to last and many have exceeded 200,000 miles with regular maintenance.
Common Maintenance:
- Regular oil changes (every 1,000-2,000 miles with modern oil)
- Valve adjustments periodically
- Carburetor tuning and cleaning
- Ignition system maintenance (points, condenser, cap, rotor)
- Cooling system service
Parts Availability: Parts for 1947 Buicks are reasonably available through specialized suppliers and the Buick Club of America. Many mechanical components were shared across Buick’s line and with other GM products, improving availability. However, some body-specific and trim pieces can be challenging to locate.
Fuel: The low compression ratio (6.30:1) means the Super runs fine on regular unleaded gasoline. No need for high-octane premium fuel or additives.
Value and Collectibility
The 1947 Buick Super represents excellent value in the collector car market. While not as valuable as Roadmasters or as trendy as early 1950s models, the Super offers authentic post-war motoring at affordable prices.
Current Market Values (Approximate):
Project Cars: $5,000 – $12,000 Needs restoration, may have rust or mechanical issues, incomplete
Driver Quality: $12,000 – $25,000 Runs and drives, presentable condition, may show wear
Show Quality: $25,000 – $45,000 Comprehensive restoration, excellent condition throughout
Original Survivors: $15,000 – $35,000 Unrestored but well-preserved examples with patina, increasingly sought-after
Convertibles command premium prices, often 50-100% more than sedans. Sedans offer the best value for collectors wanting an affordable entry into post-war classics.
Why the 1947 Super Matters
The 1947 Buick Super represents an important moment in American history. These cars rolled off the line during the first full year of peacetime production after World War II. They symbolized optimism, prosperity, and America’s return to normalcy.
Historical Significance:
- First full year of post-war production
- Peak of pent-up consumer demand
- Symbol of post-war American prosperity
- Last of the pre-1949 design generation
Engineering Significance:
- Mature straight-eight engine design
- Modern independent front suspension
- Hydraulic brakes throughout
- Overhead valve engine technology
Cultural Significance:
- The car of middle-class America
- Represented affordable comfort and quality
- Part of the American Dream of the late 1940s
Conclusion
The 1947 Buick Super Model 51 offers everything that made post-war American cars appealing: substantial size, comfortable ride, legendary reliability, and distinctive styling. The Fireball straight-eight engine provided smooth, refined power, while the spacious body accommodated families in comfort.
Today, these cars represent accessible classic car ownership. They’re simple to maintain, parts are available, and they can be driven and enjoyed rather than just trailered to shows. Whether you’re attracted to the survivor aesthetic with original paint and patina or prefer a restored example, the 1947 Buick Super delivers authentic 1940s American motoring.
As interest in survivor cars continues to grow and post-war classics gain appreciation, the 1947 Super represents both a piece of history and a practical classic that can be driven and enjoyed. It’s a car that reminds us of an optimistic time when America was building cars that were designed to last—and many did.
Frequently Asked Questions
Q: What does “Model 51” mean? A: Model 51 specifically refers to the four-door sedan body style in the Super (Series 50) line. Other Super models included the sedanet (52), convertible (56), and Estate wagon (59).
Q: Is the straight-eight engine reliable? A: Yes, very much so. By 1947, Buick had refined the straight-eight for 16 years. With proper maintenance, these engines are remarkably durable and can easily exceed 200,000 miles.
Q: Can you get parts for a 1947 Buick? A: Many mechanical parts are available through specialty suppliers and the Buick Club of America. Body panels and some trim pieces can be more challenging but are obtainable.
Q: How much does a 1947 Buick Super weigh? A: Depending on body style, approximately 3,800-4,000 pounds.
Q: What’s the difference between a 1946, 1947, and 1948 Super? A: Very little. The 1947 featured a slightly revised grille compared to 1946. The 1948 added “Super” script on the front fenders and minor interior updates. Mechanically, they’re nearly identical.
Q: Can you drive a 1947 Buick on modern highways? A: Yes, though it requires caution. The Super can cruise at 55-60 mph comfortably, making it suitable for secondary roads and gentle highway driving. Modern traffic speeds of 70+ mph are not recommended.
Q: What’s the fuel economy? A: Expect 12-16 mpg depending on driving conditions and maintenance. Not efficient by modern standards, but reasonable for a 4,000-pound car with a 248 cubic inch engine.
Q: Why are survivor cars with patina becoming popular? A: Collectors increasingly appreciate originality and authenticity. A car with original paint and honest wear tells a more complete story than a restored example. Survivor cars also preserve manufacturing details that can be lost in restoration.
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