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1948 Buick Series 40 Catalog and Classic Car Guide, Ratings and Features

Image of 1948 Buick Series 40, sourced from www.reddit.com , Image Link.

Performance Metrics

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

Fundamental Metrics

Safety: +25
Maintenance and Upkeep: +60
Restoration Difficulty: +50

Emotional Appeal

Looks: +80
Collectability: +65
Historical Significance: +55

MMP Rating

6.3 /10
Engine Specifications
Engine: Straight 8
Displacement: 248 cu in (4.1 L)
Horsepower: 110 hp
Torque: 200 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 15 mpg
Dimensions and Brakes
Brakes: Drum Brakes
Wheelbase: 124 inches
Weight: 3,600 lbs

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

1948 Buick Series 40: A Testament to Post-War Automotive Excellence

The year 1948 heralded a new era for the American automotive industry, and at the forefront of this revolution was the Buick Series 40. This remarkable vehicle emerged from the hands of a manufacturer known for blending luxury with innovation, delivering a car that encapsulated the optimism of post-war America. Buick, a division of General Motors, had already established itself as a purveyor of fine automobiles by the time it introduced the Series 40, but this model would come to hold a special place in automotive history. One unique fact that car enthusiasts might find intriguing is that the '48 Buick Series 40 was among the first production cars to feature a torque converter automatic transmission, marking a significant shift in driving dynamics.

Design and Innovation

The exterior styling of the 1948 Buick Series 40 was nothing short of majestic. With its sweeping lines and chrome accents, it exuded a sense of motion even when parked. The iconic waterfall grille and "bombsight" hood ornament became symbols of Buick's attention to detail and design prowess. Inside, passengers were treated to an opulent experience with plush seating and richly appointed trimmings that used high-quality materials befitting a car of its stature. Technological features were ahead of their time, with options like heater controls integrated into the dashboard—a novelty back then. Color options ranged from stately blacks and blues to more adventurous hues like Sequoia Cream, with each choice accentuating the car's luxurious curves. The Series 40 was available in several body styles, including sedans, coupes, and convertibles, with the Special Sedanette being particularly sought after for its sleek profile and stylish demeanor.

Historical Significance

The 1948 Buick Series 40 set itself apart from contemporaries through its blend of style, luxury, and technology. It played a pivotal role in transitioning automotive design from pre-war conservatism to post-war modernism. The introduction of Dynaflow automatic transmission was revolutionary, making driving more accessible and comfortable. This innovation would go on to influence future generations of vehicles and cement Buick's reputation as an innovator in automotive engineering.

Performance and Handling

Underneath its elegant exterior lay an engine capable of delivering smooth yet potent performance. The inline-eight cylinder engine propelled the Series 40 to respectable top speeds for its time while maintaining commendable acceleration figures. Handling was characterized by a comfortable ride that absorbed bumps with grace—thanks in part to its coil spring suspension—while also remaining composed on winding roads. Driving the '48 Buick was an auditory delight; the engine's low hum complemented by the whisper-quiet operation of its Dynaflow transmission created an almost serene experience behind the wheel.

Ownership Experience

Owners of the 1948 Buick Series 40 used their vehicles for various purposes—from daily commuting to attending prestigious car shows. Its reliability was notable for its era, though modern-day enthusiasts should be prepared for the maintenance nuances typical of classic cars. Parts can be scarce, but a dedicated community and specialist suppliers help keep these automotive icons on the road.

Fun Facts

The '48 Buick has graced many collections over the years, including those of celebrities and dignitaries. It has appeared in period films and television shows, adding authenticity to historical settings. While criticisms at the time centered around its fuel consumption—a common trait among vehicles of its size—the Series 40 remains a beloved classic.

Collector's Information

Today's collectors cherish the 1948 Buick Series 40 for its elegance and historical significance. While exact production numbers are hard to pin down, it is estimated that tens of thousands were produced across all body styles. Values vary widely based on condition, originality, and provenance but can range anywhere from $10,000 for a project car to upwards of $50,000 or more for pristine examples. The market trend for these vehicles has generally been appreciative over time as they become rarer and more desirable among classic car enthusiasts.

Conclusion

The 1948 Buick Series 40 is more than just a means of transportation; it is a rolling piece of art that captures an important moment in automotive history. Its combination of innovative technology, sumptuous design, and luxurious appointments make it a standout vehicle worthy of any collector's attention or classic car aficionado's dream list.

1948 Buick Series 40 Catalog of Parts


1948 Buick Series 40 Accelerator Pedal Pad.  Made with steel core like original-AP 29-C 1948 Buick Series 40 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

1948 Buick Series 40 Transmission Vacuum Shift Grommet.  Used on rear side-BC 40 1948 Buick Series 40 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

1948 Buick Series 40 Accelerator Pedal Bellows.  Covers unsightly steel rod-BL 7-A 1948 Buick Series 40 Accelerator Pedal Bellows. Covers unsightly steel rod-BL 7-AAccelerator Pedal Bellows. Covers unsightly steel rod. 1/4" top I.D.., 1" bottom I.D., 2-3/4" high (compresses to 1-1/2"). Each

1948 Buick Series 40 Stabilizer Bar Bushings-BN 106 1948 Buick Series 40 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

1948 Buick Series 40 Lower Inner A Frame Shaft Seal.  1-1/8 O.D., 5/16 thick-BN 23-A 1948 Buick Series 40 Lower Inner "A" Frame Shaft Seal. 1-1/8" O.D., 5/16" thick-BN 23-ALower Inner "A" Frame Shaft Seal. 1-1/8" O.D., 5/16" thick. Each

1948 Buick Series 40 Front Stabilizer Bar Bushing.  Fits rear on 1948-1956 Olds-BN 29 1948 Buick Series 40 Front Stabilizer Bar Bushing. Fits rear on 1948-1956 Olds-BN 29Front Stabilizer Bar Bushing. Fits rear on 1948-1956 Olds. 2" high. Each

1948 Buick Series 40 Stabilizer Bar Bushing.  For rear axel anti-sway rod ends-BN 34-B 1948 Buick Series 40 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

1948 Buick Series 40 Dyno-Flow Brake Pedal Pad.  3 wide X 3-1/2 long.  Each-CB 103 1948 Buick Series 40 Dyno-Flow Brake Pedal Pad. 3" wide X 3-1/2" long. Each-CB 103Dyno-Flow Brake Pedal Pad. 3" wide X 3-1/2" long. Each

1948 Buick Series 40 Clutch and Brake Pedal Pads.  2 wide X 3 long.  Pair-CB 15 1948 Buick Series 40 Clutch and Brake Pedal Pads. 2" wide X 3" long. Pair-CB 15Clutch and Brake Pedal Pads. 2" wide X 3" long. Pair

1948 Buick Series 40 Cowl and Hood Seal.  Push-in tabs, like original-CS 8 1948 Buick Series 40 Cowl and Hood Seal. Push-in tabs, like original-CS 8Cowl and Hood Seal. Push-in tabs, like original. 78" length finished. Each

1948 Buick Series 40 Upper Door Hinge Post Bumper.  Held by screw-DB 60-A 1948 Buick Series 40 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

1948 Buick Series 40 Windshield Center Bar Outer Gasket Molding Retainer-DP 10 1948 Buick Series 40 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.

1948 Buick Series 40 Windshield Center Bar Gasket-DP 11 1948 Buick Series 40 Windshield Center Bar Gasket-DP 11Windshield Center Bar Gasket. This seal is make with all the original

1948 Buick Series 40 Auxiliary Door Seals-ELP 2000 1948 Buick Series 40 Auxiliary Door Seals-ELP 2000Auxiliary Door Seals. Weatherstrip for lower front corner of front door. Pair R&L

1948 Buick Series 40 Door and Hood Bumper.  1 diameter X 7/8 thick.  Each-HF 16 1948 Buick Series 40 Door and Hood Bumper. 1" diameter X 7/8" thick. Each-HF 16Door and Hood Bumper. 1" diameter X 7/8" thick. Each



1948 Buick Series 40 Windshield and Rear Window Channel.  Used with 1/4 glass-LP 105 1948 Buick Series 40 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

1948 Buick Series 40 Windshield Pinchweld Seal for some models w/chrome garnish-LP 106 1948 Buick Series 40 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

1948 Buick Series 40 Door side seal. Same as LP 40-A, but for a heavier seal-LP 40 1948 Buick Series 40 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.

1948 Buick Series 40 Door side seal. Same as LP 40, but for a lighter seal-LP 40-A 1948 Buick Series 40 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.

1948 Buick Series 40 Tail-light Pads (fits some models)-MP 332 1948 Buick Series 40 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



1948 Buick Series 40 Door Lock Knob.  Made of Black rubber, self-threading-RP 304-A 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Slate Blue rubber, self-threading-RP 304-C 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Navy Blue rubber, self-threading-RP 304-D 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Silver Blue rubber, self-threading-RP 304-E 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Fawn colored rubber, self-threading-RP 304-F 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Olive Green rubber, self-threading-RP 304-G 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Yellow rubber, self-threading-RP 304-H 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of White rubber, self-threading-RP 304-I 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Silver rubber, self-threading-RP 304-J 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Medium Brown rubber, self-threading-RP 304-K 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Wedgwood rubber, self-threading-RP 304-L 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Teal Green rubber, self-threading-RP 304-M 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Moss Green rubber, self-threading-RP 304-N 1948 Buick Series 40 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

1948 Buick Series 40 Door Lock Knob.  Made of Ember glow rubber, self-threading-RP 304-O 1948 Buick Series 40 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

1948 Buick Series 40 Hydro-Electric Power Unit Mounting Cushion-RP 700 1948 Buick Series 40 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

1948 Buick Series 40 Torque Ball Boot.  For Cars with Dyna Flow Transmission-RP 73-A 1948 Buick Series 40 Torque Ball Boot. For Cars with Dyna Flow Transmission-RP 73-ATorque Ball Boot. For Cars with Dyna Flow Transmission. Replaces OEM #1334298. Each

1948 Buick Series 40 Folding Top Weatherstrips-RR 1600 1948 Buick Series 40 Folding Top Weatherstrips-RR 1600Folding Top Weatherstrips. Includes right & left sides plus windshield posts. 8-Piece Set



1948 Buick Series 40 Front Door Window Adjustment Bumper Cushion-SB 70 1948 Buick Series 40 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

1948 Buick Series 40 Speedometer Cable / Utility Grommet-SM 2 1948 Buick Series 40 Speedometer Cable / Utility Grommet-SM 2Speedometer Cable / Utility Grommet. Fits 3/4" to 13/16" hole. 3/16" center hole. Each


1948 Buick Series 40 Ignition cable grommet. 2 in. OD x 1/2 in. ID fits a 1.5 in-SM 33 1948 Buick Series 40 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.

1948 Buick Series 40 Special Purpose Grommet-SM 4 1948 Buick Series 40 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

1948 Buick Series 40 Firewall Grommet.  For park brake cable.  Angled hole. Fit's 1 hole-SM 40 1948 Buick Series 40 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

1948 Buick Series 40 Speedometer Cable Firewall Grommet.  Fits 1-7/8 long hole-SM 47 1948 Buick Series 40 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


1948 Buick Series 40 Choke Cable Grommet.  Fits 5/8 hole.  1/8 center hole-SM 62 1948 Buick Series 40 Choke Cable Grommet. Fits 5/8" hole. 1/8" center hole-SM 62Choke Cable Grommet. Fits 5/8" hole. 1/8" center hole. Each

1948 Buick Series 40 Radio Fuse Boot and Wire Harness.  For original radio only-SM 65-A 1948 Buick Series 40 Radio Fuse Boot and Wire Harness. For original radio only-SM 65-ARadio Fuse Boot and Wire Harness. For original radio only. Each

1948 Buick Series 40 Special Purpose Grommet-SM 68 1948 Buick Series 40 Special Purpose Grommet-SM 68Special Purpose Grommet. For headlight wire loom through body. Each

1948 Buick Series 40 Firewall and Utility Grommet.  Fits 3/4 hole.  3/16 I.D-SM 8 1948 Buick Series 40 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



1948 Buick Series 40 Vertical Seal for Vent Window.  Each is 17 long.  Pair-VS 2 1948 Buick Series 40 Vertical Seal for Vent Window. Each is 17" long. Pair-VS 2Vertical Seal for Vent Window. Each is 17" long. Pair

1948 Buick Series 40 Flexible glass-run channel-WC 11-72 1948 Buick Series 40 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.

1948 Buick Series 40 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-72 1948 Buick Series 40 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.

1948 Buick Series 40 Rigid division-bar channel. Made with Zinc-plated bead-WC 1-96 1948 Buick Series 40 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.

1948 Buick Series 40 Rigid division-bar channel. Made with stainless steel bead-WC 2-72 1948 Buick Series 40 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.

1948 Buick Series 40 Flexible sweeper. Made with stainless steel bead-WC 8-72 1948 Buick Series 40 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.

1948 Buick Series 40 Fender Bolts.  For use with Fender Bolt Washers; WF 3001-WF 3000 1948 Buick Series 40 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

1948 Buick Series 40 Fender Bolt Washers.  For use with Fender Bolts; WF 3000-WF 3001 1948 Buick Series 40 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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