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1947 Buick Roadmaster Series 70 Catalog and Classic Car Guide, Ratings and Features

Image of 1947 Buick Roadmaster Series 70, sourced from commons.wikimedia.org , Image Link.

Performance Metrics

Performance: +35
Handling: +30
Ride Comfort: +70

Fundamental Metrics

Safety: +25
Maintenance and Upkeep: +50
Restoration Difficulty: +40

Emotional Appeal

Looks: +80
Collectability: +75
Historical Significance: +60

MMP Rating

6.4 /10
Engine Specifications
Engine: Straight 8
Displacement: 320.2 cu in (5.2 L)
Horsepower: 144 hp
Torque: 277 lb-ft
Compression Ratio: 6.6:1
Ignition System: Battery and coil
Cooling System: Liquid-cooled
Performance Specifications
0-60 Time: Estimated 15 seconds
1/4 Mile Time: Not available
Top Speed: 90 mph
Transmission and Drive
Drive Type: Rear-wheel drive
Transmission Type: 3-speed manual
Fuel and Efficiency
Fuel System Type: Carburetor
MPG: Estimated 15 mpg
Dimensions and Brakes
Brakes: Drum brakes
Wheelbase: 129 inches
Weight: 4,305 lbs

Note: Specifications for classic cars are given to the best of our ability, considering the limited and variant data available.

Introduction

The 1947 Buick Roadmaster Series 70 is a rolling testament to post-war American optimism and the zenith of automotive luxury of its era. Born from the storied assembly lines of Buick, a division of General Motors, this vehicle emerged as a symbol of prosperity and innovation. At a time when the world was rebuilding, the Roadmaster stood as a beacon of American engineering prowess. A notable moment in its history is when it served as the pace car for the Indianapolis 500 race in 1947, cementing its status in automotive lore.

Design and Innovation

With sweeping curves and a commanding presence, the Roadmaster's exterior styling was an exercise in elegance and sophistication. The iconic waterfall grille and broad-shouldered fenders were complemented by the "bombsight" hood ornament—a design element that would become synonymous with Buick. Inside, passengers were enveloped in luxury, with plush seating upholstered in high-quality fabrics or optional leather. The dashboard's art deco design featured chrome accents and a full array of gauges that exuded class. Technological marvels for its time included a heater, defroster, and even an optional radio—an extravagance for any car in the late '40s. Color options ranged from stately blacks and blues to vibrant reds, with Sequoia Cream being a popular choice among discerning buyers. The Roadmaster was available in several body styles including sedan, coupe, convertible, and estate wagon—with the convertible being particularly sought after for its open-air grandeur.

Historical Significance

The Roadmaster's impact on automotive design was profound; it introduced features such as Dynaflow, Buick's first automatic transmission, which would set the stage for future advancements in vehicle drivability. Its luxurious appointments and commanding road presence set it apart from contemporaries and helped define what a premium American automobile should be—a legacy that continues to influence modern car design.

Performance and Handling

The heart of the Roadmaster was its robust 320 cubic inch straight-eight engine that delivered smooth performance befitting its stature. With a top speed that could reach over 90 mph and an acceleration from 0-60 mph that was impressive for its size, this Buick balanced power with poise. On the road, it handled with grace; its coil spring suspension absorbed bumps with ease while providing stability through windy conditions. Driving one was an auditory delight—the engine's purr was music to any motor enthusiast's ears—and the overall experience was one of unrivaled comfort and control.

Ownership Experience

The Roadmaster served various roles—from daily transportation for the well-to-do to a weekend showpiece for collectors. Its reliability was commendable for its time, though modern owners should expect some quirks inherent to vintage vehicles. Maintenance can be straightforward if you're familiar with pre-war technology; however, sourcing parts may challenge those new to classic car ownership.

Fun Facts

This automotive icon has graced many collections, including those of celebrities like Tom Hanks. While not known for breaking speed records, it did set a standard for luxury that few could match. Criticisms were few but often pointed at its fuel consumption—a trade-off for its size and performance. The Roadmaster also made cameo appearances in films set in its era, further solidifying its place in cultural history.

Collector's Information

Today, the 1947 Buick Roadmaster Series 70 is a cherished collectible with values ranging significantly based on condition and originality. Production numbers were substantial for such a high-end vehicle; however, survivors in pristine condition are relatively rare. Values have generally appreciated over time as enthusiasts seek out these icons of American luxury—expect to see prices anywhere from $20,000 to well over $100,000 for concours-quality examples.

Conclusion

The 1947 Buick Roadmaster Series 70 is more than just a car; it's a piece of American history on wheels. From its luxurious appointments to its smooth performance on open roads, this classic continues to captivate enthusiasts around the globe. Whether you're behind the wheel or admiring from afar, the Roadmaster remains an enduring symbol of automotive excellence.

1947 Buick Roadmaster Series 70 Catalog of Parts

1947 Buick Roadmaster Series 70 Accelerator Pedal Pad.  Made with steel core like original-AP 29-C 1947 Buick Roadmaster Series 70 Accelerator Pedal Pad. Made with steel core like original-AP 29-CAccelerator Pedal Pad. Made with steel core like original. 2-1/8" X 8-1/2". Black. Each

1947 Buick Roadmaster Series 70 Transmission Vacuum Shift Grommet.  Used on rear side-BC 40 1947 Buick Roadmaster Series 70 Transmission Vacuum Shift Grommet. Used on rear side-BC 40Transmission Vacuum Shift Grommet. Used on rear side. 1-1/2" O.D., 3/8" I.D., 3/8" Thick. Each

1947 Buick Roadmaster Series 70 Stabilizer Bar Bushings-BN 106 1947 Buick Roadmaster Series 70 Stabilizer Bar Bushings-BN 106Stabilizer Bar Bushings. 1-3/4" long X 1-1/2" wide X 1-1/2" high, 10/16" I.D. Pair


1947 Buick Roadmaster Series 70 Stabilizer Bar Bushing.  For rear axel anti-sway rod ends-BN 34-B 1947 Buick Roadmaster Series 70 Stabilizer Bar Bushing. For rear axel anti-sway rod ends-BN 34-BStabilizer Bar Bushing. For rear axel anti-sway rod ends. Four used per car. 1-5/16" O.D., 3/4" long, with 5/8" I.D. Each



1947 Buick Roadmaster Series 70 Cowl and Hood Seal.  Push-in tabs, like original-CS 8 1947 Buick Roadmaster Series 70 Cowl and Hood Seal. Push-in tabs, like original-CS 8Cowl and Hood Seal. Push-in tabs, like original. 78" length finished. Each

1947 Buick Roadmaster Series 70 Upper Door Hinge Post Bumper.  Held by screw-DB 60-A 1947 Buick Roadmaster Series 70 Upper Door Hinge Post Bumper. Held by screw-DB 60-AUpper Door Hinge Post Bumper. Held by screw. 7/8" diameter X 1/8" thick. Each

1947 Buick Roadmaster Series 70 Windshield Center Bar Outer Gasket Molding Retainer-DP 10 1947 Buick Roadmaster Series 70 Windshield Center Bar Outer Gasket Molding Retainer-DP 10Windshield Center Bar Outer Gasket Molding Retainer. Use with original steel to retain stainless steel trim to the windshield. 18 in. long. Each.

1947 Buick Roadmaster Series 70 Windshield Center Bar Gasket-DP 11 1947 Buick Roadmaster Series 70 Windshield Center Bar Gasket-DP 11Windshield Center Bar Gasket. This seal is make with all the original

1947 Buick Roadmaster Series 70 Auxiliary Door Seals-ELP 2000 1947 Buick Roadmaster Series 70 Auxiliary Door Seals-ELP 2000Auxiliary Door Seals. Weatherstrip for lower front corner of front door. Pair R&L



1947 Buick Roadmaster Series 70 Windshield and Rear Window Channel.  Used with 1/4 glass-LP 105 1947 Buick Roadmaster Series 70 Windshield and Rear Window Channel. Used with 1/4" glass-LP 105Windshield and Rear Window Channel. Used with 1/4" glass. Fits some models. Sold by the foot

1947 Buick Roadmaster Series 70 Windshield Pinchweld Seal for some models w/chrome garnish-LP 106 1947 Buick Roadmaster Series 70 Windshield Pinchweld Seal for some models w/chrome garnish-LP 106Windshield Pinchweld Seal for some models w/chrome garnish. Used with LP 105, DP 10 & DP 11 (center division bar seals)to seal and retain outer chrome garnish. Sold by the foot

1947 Buick Roadmaster Series 70 Door side seal. Same as LP 40-A, but for a heavier seal-LP 40 1947 Buick Roadmaster Series 70 Door side seal. Same as LP 40-A, but for a heavier seal-LP 40Door side seal. Same as LP 40-A, but for a heavier seal. Fits many domestic passenger cars and trucks. Used in Cobra kit cars as trunk weatherstrip. Per foot.

1947 Buick Roadmaster Series 70 Door side seal. Same as LP 40, but for a lighter seal-LP 40-A 1947 Buick Roadmaster Series 70 Door side seal. Same as LP 40, but for a lighter seal-LP 40-ADoor side seal. Same as LP 40, but for a lighter seal. Fits many domestic passenger cars and trucks. Universal seal for street rods and customs. Used in Cobra kit cars as door weatherstrip. Per foot.

1947 Buick Roadmaster Series 70 Tail-light Pads (fits some models)-MP 332 1947 Buick Roadmaster Series 70 Tail-light Pads (fits some models)-MP 332Tail-light Pads (fits some models). Overall length approximately 10". 4-3/4" wide X 10" long. Pair R&L



1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Black rubber, self-threading-RP 304-A 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Black rubber, self-threading-RP 304-ADoor Lock Knob. Made of Black rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Slate Blue rubber, self-threading-RP 304-C 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Slate Blue rubber, self-threading-RP 304-CDoor Lock Knob. Made of Slate Blue rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Navy Blue rubber, self-threading-RP 304-D 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Navy Blue rubber, self-threading-RP 304-DDoor Lock Knob. Made of Navy Blue rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Silver Blue rubber, self-threading-RP 304-E 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Silver Blue rubber, self-threading-RP 304-EDoor Lock Knob. Made of Silver Blue rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Fawn colored rubber, self-threading-RP 304-F 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Fawn colored rubber, self-threading-RP 304-FDoor Lock Knob. Made of Fawn colored rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Olive Green rubber, self-threading-RP 304-G 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Olive Green rubber, self-threading-RP 304-GDoor Lock Knob. Made of Olive Green rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Yellow rubber, self-threading-RP 304-H 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Yellow rubber, self-threading-RP 304-HDoor Lock Knob. Made of Yellow rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of White rubber, self-threading-RP 304-I 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of White rubber, self-threading-RP 304-IDoor Lock Knob. Made of White rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Silver rubber, self-threading-RP 304-J 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Silver rubber, self-threading-RP 304-JDoor Lock Knob. Made of Silver rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Medium Brown rubber, self-threading-RP 304-K 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Medium Brown rubber, self-threading-RP 304-KDoor Lock Knob. Made of Medium Brown rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Wedgwood rubber, self-threading-RP 304-L 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Wedgwood rubber, self-threading-RP 304-LDoor Lock Knob. Made of Wedgwood rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Teal Green rubber, self-threading-RP 304-M 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Teal Green rubber, self-threading-RP 304-MDoor Lock Knob. Made of Teal Green rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Moss Green rubber, self-threading-RP 304-N 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Moss Green rubber, self-threading-RP 304-NDoor Lock Knob. Made of Moss Green rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Door Lock Knob.  Made of Ember glow rubber, self-threading-RP 304-O 1947 Buick Roadmaster Series 70 Door Lock Knob. Made of Ember glow rubber, self-threading-RP 304-ODoor Lock Knob. Made of Ember glow rubber, self-threading. 1-3/8" tall with 1/8" lower I.D., 3/8" lower O.D. Each

1947 Buick Roadmaster Series 70 Hydro-Electric Power Unit Mounting Cushion-RP 700 1947 Buick Roadmaster Series 70 Hydro-Electric Power Unit Mounting Cushion-RP 700Hydro-Electric Power Unit Mounting Cushion. Two to three used per car. 1" O.D. X 3/4" high rubber with 1/4 x 20 x 3/4" Studs. Replaces OEM #4149788. Each

1947 Buick Roadmaster Series 70 Folding Top Weatherstrips-RR 1600 1947 Buick Roadmaster Series 70 Folding Top Weatherstrips-RR 1600Folding Top Weatherstrips. Includes right & left sides plus windshield posts. 8-Piece Set



1947 Buick Roadmaster Series 70 Front Door Window Adjustment Bumper Cushion-SB 70 1947 Buick Roadmaster Series 70 Front Door Window Adjustment Bumper Cushion-SB 70Front Door Window Adjustment Bumper Cushion. For "T" bolt in door. Four to six used per car. 11/16" X 1/4". Each

1947 Buick Roadmaster Series 70 Speedometer Cable / Utility Grommet-SM 2 1947 Buick Roadmaster Series 70 Speedometer Cable / Utility Grommet-SM 2Speedometer Cable / Utility Grommet. Fits 3/4" to 13/16" hole. 3/16" center hole. Each


1947 Buick Roadmaster Series 70 Ignition cable grommet. 2 in. OD x 1/2 in. ID fits a 1.5 in-SM 33 1947 Buick Roadmaster Series 70 Ignition cable grommet. 2 in. OD x 1/2 in. ID fits a 1.5 in-SM 33Ignition cable grommet. 2 in. OD x 1/2 in. ID fits a 1.5 in. hole. Each.

1947 Buick Roadmaster Series 70 Special Purpose Grommet-SM 4 1947 Buick Roadmaster Series 70 Special Purpose Grommet-SM 4Special Purpose Grommet. For firewall, fuel gauge wire, horn wire, hood latch cable and fresh air cable. Fits 1/2" hole. 1/8" center hole. Each

1947 Buick Roadmaster Series 70 Firewall Grommet.  For park brake cable.  Angled hole. Fit's 1 hole-SM 40 1947 Buick Roadmaster Series 70 Firewall Grommet. For park brake cable. Angled hole. Fit's 1" hole-SM 40Firewall Grommet. For park brake cable. Angled hole. Fit's 1" Hole. Each

1947 Buick Roadmaster Series 70 Speedometer Cable Firewall Grommet.  Fits 1-7/8 long hole-SM 47 1947 Buick Roadmaster Series 70 Speedometer Cable Firewall Grommet. Fits 1-7/8" long hole-SM 47Speedometer Cable Firewall Grommet. Fits 1-7/8" long hole. NOTE: Not used when car was factory equipped with windshield washers. (Fits some models) Each




1947 Buick Roadmaster Series 70 Special Purpose Grommet-SM 68 1947 Buick Roadmaster Series 70 Special Purpose Grommet-SM 68Special Purpose Grommet. For headlight wire loom through body. Each

1947 Buick Roadmaster Series 70 Firewall and Utility Grommet.  Fits 3/4 hole.  3/16 I.D-SM 8 1947 Buick Roadmaster Series 70 Firewall and Utility Grommet. Fits 3/4" hole. 3/16" I.D-SM 8Firewall and Utility Grommet. Fits 3/4" hole. 3/16" I.D. Each

1947 Buick Roadmaster Series 70 Door Adjustment Hole Plug Grommet for Convertibles Only-SM 86 1947 Buick Roadmaster Series 70 Door Adjustment Hole Plug Grommet for Convertibles Only-SM 86Door Adjustment Hole Plug Grommet for Convertibles Only. Fits a 5/8" wide X 1" long hole. Each



1947 Buick Roadmaster Series 70 Rubber Conduit (hose).  Double tube-VH 300 1947 Buick Roadmaster Series 70 Rubber Conduit (hose). Double tube-VH 300Rubber Conduit (hose). Double tube. Used from body to door for electrical and hydraulic lines for power windows. Two pieces, 15" long. Pair


1947 Buick Roadmaster Series 70 Flexible glass-run channel-WC 11-72 1947 Buick Roadmaster Series 70 Flexible glass-run channel-WC 11-72Flexible glass-run channel. Mohair lined, cloth covered with stainless steel bead. Used on side windows. 72 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned in two equal lengths to reduce overseas shipping costs.

1947 Buick Roadmaster Series 70 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-72 1947 Buick Roadmaster Series 70 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-72Rigid division-bar channel. Made with Zinc-plated bead. Used on lower side windows. 72 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned into two equal lengths to reduce overseas shipping costs.

1947 Buick Roadmaster Series 70 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-96 1947 Buick Roadmaster Series 70 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-96Rigid division-bar channel. Made with Zinc-plated bead. Used on lower side windows. 96 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned in two or three equal lengths to reduce overseas shipping costs.

1947 Buick Roadmaster Series 70 Rigid division-bar channel. Made with stainless steel bead-WC 2-72 1947 Buick Roadmaster Series 70 Rigid division-bar channel. Made with stainless steel bead-WC 2-72Rigid division-bar channel. Made with stainless steel bead. 72 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned into two equal lengths to reduce overseas shipping costs.

1947 Buick Roadmaster Series 70 Flexible sweeper. Made with stainless steel bead-WC 8-72 1947 Buick Roadmaster Series 70 Flexible sweeper. Made with stainless steel bead-WC 8-72Flexible sweeper. Made with stainless steel bead. Used on inner and outer beltlines. Also forms easily for use with sliding quarter windows. 72 in. long. Each. NOTE: $20 special shipping charge applies for domestic orders. Call or email for overseas shipping costs. Part can be sectioned into two equal lengths to reduce overseas shipping costs.

1947 Buick Roadmaster Series 70 Fender Bolts.  For use with Fender Bolt Washers; WF 3001-WF 3000 1947 Buick Roadmaster Series 70 Fender Bolts. For use with Fender Bolt Washers; WF 3001-WF 3000Fender Bolts. For use with Fender Bolt Washers; WF 3001. Zinc Chromate plated, high strength. 1" X 5/16". Set of 25

1947 Buick Roadmaster Series 70 Fender Bolt Washers.  For use with Fender Bolts; WF 3000-WF 3001 1947 Buick Roadmaster Series 70 Fender Bolt Washers. For use with Fender Bolts; WF 3000-WF 3001Fender Bolt Washers. For use with Fender Bolts; WF 3000. High quality, cadmium plated. 1-1/4" O.D., 3/8" I.D. Set of 25


1947 Buick Roadmaster Series 70 Front Vent Window Seals, for Sedans.  25 long each-WR 7320 1947 Buick Roadmaster Series 70 Front Vent Window Seals, for Sedans. 25" long each-WR 7320Front Vent Window Seals, for Sedans. 25" long each. Pair R&L




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