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1940 Buick Roadmaster Series 80 Catalog and Classic Car Guide, Ratings and Features

Image of 1940 Buick Roadmaster Series 80, sourced from www.streetsideclassics.com , Image Link.

Performance Metrics

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

Fundamental Metrics

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

Emotional Appeal

Looks: +80
Collectability: +65
Historical Significance: +60

MMP Rating

6.4 /10
Engine Specifications
Engine: Straight 8
Displacement: 320.2 cu in (5.2 L)
Horsepower: 141 HP
Torque: 269 lb-ft
Compression Ratio: 6.6:1
Ignition System: Battery Ignition
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 10-12 MPG
Dimensions and Brakes
Brakes: Drum Brakes
Wheelbase: 133 in (3,378 mm)
Weight: 4,300 lbs

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

Introduction

The 1940 Buick Roadmaster Series 80 emerges as an emblem of American automotive excellence, a testament to the era's grandeur and engineering prowess. Born from the storied assembly lines of Buick, a marque synonymous with luxury and innovation, the Roadmaster was not just another car; it was a statement of status and style. With its sweeping lines and imposing presence, this vehicle captured the imagination of a nation on the cusp of monumental change. A standout fact about the Roadmaster is its cameo in wartime efforts, where its robust architecture contributed to the manufacturing of military vehicles.

Design and Innovation

The exterior of the 1940 Buick Roadmaster Series 80 was a harmonious blend of art and function, boasting a bold waterfall grille and elegant fender lines that seemed to stretch into infinity. The interior was a sanctuary of comfort, with plush seating and an attention to detail that spoke volumes about the quality of materials chosen. For its time, the Roadmaster was at the technological vanguard, featuring innovations like a column-mounted gearshift—a novelty that provided added convenience for drivers. Popular color choices ranged from stately blacks to rich blues, with Sequoia Cream being a particularly sought-after hue. Among its various body styles, including sedans and convertibles, the convertible phaeton was a pinnacle of desirability, exuding an air of exclusivity and charm.

Historical Significance

The Roadmaster's influence on automotive design cannot be overstated; it introduced features like turn signals as standard equipment, setting new safety precedents. Its Dynaflash straight-eight engine was not only powerful but also smooth—a benchmark for luxury performance that would inspire generations of vehicles to come.

Performance and Handling

Underneath its stately hood lay an engine capable of delivering spirited performance for its day. The 1940 Roadmaster could reach top speeds that were impressive for such a substantial vehicle, while acceleration from 0-60 mph was achieved with surprising alacrity for a car of its size. Handling was poised and dignified; it absorbed road imperfections with grace and maintained composure in windy conditions. Driving a Roadmaster was akin to conducting an orchestra—the hum of the engine provided a melodious backdrop to the symphony of motion.

Ownership Experience

The Roadmaster served various roles—from a reliable daily driver to a coveted showpiece at classic car exhibitions. Its maintenance profile was typical for vehicles of its age: requiring regular attention but rewarding those who invested time with reliability. While certain parts may now be scarce, enthusiasts revel in the challenge and community support inherent in preserving these automotive treasures.

Fun Facts

Did you know that the 1940 Buick Roadmaster Series 80 has graced the garages of Hollywood elites and even royalty? While not holding any official speed records, it's been featured prominently in period films and continues to be celebrated at vintage rallies for its endurance. Despite criticisms over fuel consumption—a common trait among vehicles of its class—the Roadmaster remains an icon.

Collector's Information

Today's collector market values the 1940 Buick Roadmaster Series 80 significantly, with prices varying based on condition, originality, and history. Production numbers were limited even in their time; hence surviving models are relatively rare finds. Estimates suggest that values range widely but can climb well into six figures for pristine examples or those with documented historical significance. The market trend shows appreciation over time as these classics become rarer.

Conclusion

The 1940 Buick Roadmaster Series 80 stands as more than just a relic from another era—it's a rolling chronicle that tells stories of innovation, luxury, and timeless appeal. Its legacy endures in every purr of its engine and gleam in its chrome—a true masterpiece on wheels that continues to captivate enthusiasts around the globe.

1940 Buick Roadmaster Series 80 Catalog of Parts

1940 Buick Roadmaster Series 80 Accelerator Pedal Pad.  Made with steel core like original-AP 29-C 1940 Buick Roadmaster Series 80 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

1940 Buick Roadmaster Series 80 Transmission Vacuum Shift Grommet.  Used on rear side-BC 40 1940 Buick Roadmaster Series 80 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

1940 Buick Roadmaster Series 80 Rear Bumper Arm Grommets-BG 15 1940 Buick Roadmaster Series 80 Rear Bumper Arm Grommets-BG 15Rear Bumper Arm Grommets. 2-7/8" wide X 4-3/8" long, with 1-3/4" long inner slot. Pair

1940 Buick Roadmaster Series 80 Front Bumper Arm Grommets-BG 33 1940 Buick Roadmaster Series 80 Front Bumper Arm Grommets-BG 33Front Bumper Arm Grommets. 2-1/2" wide X 5-3/8" long, with 1-7/8" long inner slot. Pair

1940 Buick Roadmaster Series 80 Front Bumper Arm Grommets-BG 34 1940 Buick Roadmaster Series 80 Front Bumper Arm Grommets-BG 34Front Bumper Arm Grommets. 2-7/8" wide X 5-1/2" long, with 1-13/16" long inner slot. Pair

1940 Buick Roadmaster Series 80 Rear Bumper Arm Grommets-BG 40 1940 Buick Roadmaster Series 80 Rear Bumper Arm Grommets-BG 40Rear Bumper Arm Grommets. 2-3/4" wide X 4-3/4" long, with 1-1/2" long inner slot. Pair

1940 Buick Roadmaster Series 80 Stabilizer Bar Bushings-BN 106 1940 Buick Roadmaster Series 80 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


1940 Buick Roadmaster Series 80 Upper Door Hinge Post Bumper.  Held by screw-DB 60-A 1940 Buick Roadmaster Series 80 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


1940 Buick Roadmaster Series 80 Gravel Shields.  Flat without metal backing plates-FS 25 1940 Buick Roadmaster Series 80 Gravel Shields. Flat without metal backing plates-FS 25Gravel Shields. Flat without metal backing plates. Apply with contact cement. 16" long X 9" wide at top and 7-1/2" wide at bottom. Pair

1940 Buick Roadmaster Series 80 Gravel Shields and Narrow Body Section Gravel Shields-FS 25-26 1940 Buick Roadmaster Series 80 Gravel Shields and Narrow Body Section Gravel Shields-FS 25-26Gravel Shields and Narrow Body Section Gravel Shields. Gravel Shields: 16" long X 8-1/2" wide at top and 6-1/2" wide at bottom. Narrow Body Section: 14" long, with beaded edge extending 1" along top and bottom. Complete 4-piece set

1940 Buick Roadmaster Series 80 Narrow Body Section Gravel Shields-FS 26 1940 Buick Roadmaster Series 80 Narrow Body Section Gravel Shields-FS 26Narrow Body Section Gravel Shields. This part used on most models. 14" long, with beaded edge extending 1" along top and bottom. Pair

1940 Buick Roadmaster Series 80 Hood Rest Pad Bumper.  Metal core, tab held-HC 31-A 1940 Buick Roadmaster Series 80 Hood Rest Pad Bumper. Metal core, tab held-HC 31-AHood Rest Pad Bumper. Metal core, tab held. Four to twelve used per car. 1-1/4" between tabs. Each




1940 Buick Roadmaster Series 80 Windshield and Rear Window Channel.  Used with 1/4 glass-LP 105 1940 Buick Roadmaster Series 80 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

1940 Buick Roadmaster Series 80 Door side seal. Same as LP 40-A, but for a heavier seal-LP 40 1940 Buick Roadmaster Series 80 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.

1940 Buick Roadmaster Series 80 Door side seal. Same as LP 40, but for a lighter seal-LP 40-A 1940 Buick Roadmaster Series 80 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.


1940 Buick Roadmaster Series 80 Windshield Wiper Transmission Pad-MP 280 1940 Buick Roadmaster Series 80 Windshield Wiper Transmission Pad-MP 280Windshield Wiper Transmission Pad. 1-7/8" wide X 2-1/2" long. Each


1940 Buick Roadmaster Series 80 Windshield Wiper Transmission Pad-MP 301 1940 Buick Roadmaster Series 80 Windshield Wiper Transmission Pad-MP 301Windshield Wiper Transmission Pad. 1-1/8" wide X 1-1/2" long. Each





1940 Buick Roadmaster Series 80 Trunk Hinge Pads.  1-1/2 wide X 10-1/4 long-MP 336-B 1940 Buick Roadmaster Series 80 Trunk Hinge Pads. 1-1/2" wide X 10-1/4" long-MP 336-BTrunk Hinge Pads. 1-1/2" wide X 10-1/4" long. 4- Piece Set

1940 Buick Roadmaster Series 80 Door Ferrule Grommet. Made of black rubber-MP 546-H 1940 Buick Roadmaster Series 80 Door Ferrule Grommet. Made of black rubber-MP 546-HDoor Ferrule Grommet. Made of black rubber. Fits over your old steel door ferrule (also see WF 2006) 1-3/16" O.D. Each


1940 Buick Roadmaster Series 80 Door Lock Knob.  Brown.  1/2 diameter X 1 long X 1/8 hole-RP 303 1940 Buick Roadmaster Series 80 Door Lock Knob. Brown. 1/2" diameter X 1" long X 1/8" hole-RP 303Door Lock Knob. Brown. 1/2" diameter X 1" long X 1/8" hole. Each





1940 Buick Roadmaster Series 80 Front Door Window Adjustment Bumper Cushion-SB 70 1940 Buick Roadmaster Series 80 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

1940 Buick Roadmaster Series 80 Speedometer Cable / Utility Grommet-SM 2 1940 Buick Roadmaster Series 80 Speedometer Cable / Utility Grommet-SM 2Speedometer Cable / Utility Grommet. Fits 3/4" to 13/16" hole. 3/16" center hole. Each



1940 Buick Roadmaster Series 80 Firewall Grommets, for thermostat, oil, throttle, choke-SM 32 1940 Buick Roadmaster Series 80 Firewall Grommets, for thermostat, oil, throttle, choke-SM 32Firewall Grommets, for thermostat, oil, throttle, choke, vacuum and speedometer. 1-1/8" O.D., 1/4 I.D. 2-1/8" long X 1-1/8" wide. Set

1940 Buick Roadmaster Series 80 Firewall Grommet for Thermostadt, Oil throttle, Choke-SM 32-B 1940 Buick Roadmaster Series 80 Firewall Grommet for Thermostadt, Oil throttle, Choke-SM 32-BFirewall Grommet for Thermostadt, Oil throttle, Choke, Vacuum and Speedometer. Fits 3/4" hole. 1/4" I.D., 1-1/4" O.D. Each

1940 Buick Roadmaster Series 80 Ignition cable grommet. 2 in. OD x 1/2 in. ID fits a 1.5 in-SM 33 1940 Buick Roadmaster Series 80 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.

1940 Buick Roadmaster Series 80 Firewall grommet for headlight and tail-light wires-SM 34 1940 Buick Roadmaster Series 80 Firewall grommet for headlight and tail-light wires-SM 34Firewall grommet for headlight and tail-light wires. Fits 11/16" hole. 5/16" I.D., 15/16" O.D. Each

1940 Buick Roadmaster Series 80 Special Purpose Grommet-SM 4 1940 Buick Roadmaster Series 80 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

1940 Buick Roadmaster Series 80 Firewall Grommet.  For park brake cable.  Angled hole. Fit's 1 hole-SM 40 1940 Buick Roadmaster Series 80 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

1940 Buick Roadmaster Series 80 Speedometer Cable Firewall Grommet.  Fits 1-7/8 long hole-SM 47 1940 Buick Roadmaster Series 80 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


1940 Buick Roadmaster Series 80 Hood Cable Grommet.  Fits 7/16 to 1/2 hole-SM 61 1940 Buick Roadmaster Series 80 Hood Cable Grommet. Fits 7/16" to 1/2" hole-SM 61Hood Cable Grommet. Fits 7/16" to 1/2" hole. 3/16" center hole. Each


1940 Buick Roadmaster Series 80 Firewall Grommet, for Convertibles.  For top of  vacuum hose-SM 63 1940 Buick Roadmaster Series 80 Firewall Grommet, for Convertibles. For top of vacuum hose-SM 63Firewall Grommet, for Convertibles. For top of vacuum hose. Fits 7/8" hole. 3/4" center hole. Each

1940 Buick Roadmaster Series 80 Special Purpose Grommet-SM 68 1940 Buick Roadmaster Series 80 Special Purpose Grommet-SM 68Special Purpose Grommet. For headlight wire loom through body. Each

1940 Buick Roadmaster Series 80 Firewall and Utility Grommet.  Fits 3/4 hole.  3/16 I.D-SM 8 1940 Buick Roadmaster Series 80 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


1940 Buick Roadmaster Series 80 Trunk Seal for Coupes and Convertibles Only-TK 58-B/18 1940 Buick Roadmaster Series 80 Trunk Seal for Coupes and Convertibles Only-TK 58-B/18Trunk Seal for Coupes and Convertibles Only. 1" wide X 1/2" thick. Each



1940 Buick Roadmaster Series 80 Flexible glass-run channel-WC 11-72 1940 Buick Roadmaster Series 80 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.

1940 Buick Roadmaster Series 80 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-72 1940 Buick Roadmaster Series 80 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.

1940 Buick Roadmaster Series 80 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-96 1940 Buick Roadmaster Series 80 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.

1940 Buick Roadmaster Series 80 Rigid division-bar channel. Made with stainless steel bead-WC 2-72 1940 Buick Roadmaster Series 80 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.

1940 Buick Roadmaster Series 80 Flexible sweeper. Made with stainless steel bead-WC 8-72 1940 Buick Roadmaster Series 80 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.

1940 Buick Roadmaster Series 80 Chrome Door Ferrule. To be used with MP 546-H. 1-1/16 O.D-WF 2006 1940 Buick Roadmaster Series 80 Chrome Door Ferrule. To be used with MP 546-H. 1-1/16" O.D-WF 2006Chrome Door Ferrule. To be used with MP 546-H. 1-1/16" O.D., 5/8" high. Fits most models. Each

1940 Buick Roadmaster Series 80 Fender Bolts.  For use with Fender Bolt Washers; WF 3001-WF 3000 1940 Buick Roadmaster Series 80 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

1940 Buick Roadmaster Series 80 Fender Bolt Washers.  For use with Fender Bolts; WF 3000-WF 3001 1940 Buick Roadmaster Series 80 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




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For over 100 years, Metro Moulded Parts has been the pinnacle of quality in classic car restoration parts. Our commitment to precision and authenticity in every component ensures a perfect fit and an OEM-level appearance.

  • Expert Craftsmanship & Quality: Each part is a testament to our dedication to reliability and perfection, crafted from original designs and thoroughly tested.
  • Advanced Technology: We use cutting-edge techniques to create flawless, long-lasting parts that surpass others in performance.
  • SuperSoft Sponge – The Ultimate Door Seal: Not only are our door seals 30% softer than competitors', but they're also guaranteed to never leak. They effectively reduce wind and road noise, enhancing your classic car's comfort and driving experience.
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  • Unrivaled Warranty: We back our products with a 30-year industry-leading warranty, a testament to our confidence in their quality.

Join us in preserving the legacy of classic cars with parts that are crafted for perfection, not just made.

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