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Full-size performance

1954 Hudson Hornet 308

Full-size performance powered by 1954 Hudson 308 inline six.

1954 Hornet two-door front three-quarter view
Series 7D Hornet
Engine 308 cu in L-head inline six
Standard output 160 gross hp
Twin H-Power 170 gross hp, optional
Wheelbase 124 inches

Story

1954 Hudson Hornet 308

The 1954 Hornet was the last Detroit-built expression of Hudson's low-slung Step-Down design. Its new Flight-Line nose, one-piece curved windshield, raised rear fenders, and large vertical taillamps updated a body whose welded single-unit construction still put passengers and mass lower than most contemporary American cars.

The 308 and Twin H-Power

Every Series 7D Hornet used Hudson's 308-cubic-inch L-head inline six. The standard Carter two-barrel version was rated at 160 gross horsepower and 264 lb-ft. Twin H-Power was an $86 option, not a separate model: two Carter WA-1 one-barrels and dedicated manifolding raised the rating to 170 horsepower and 278 lb-ft.

Hudson also sold 7-X competition engine equipment through its parts operation. Period references put the package near 210 horsepower and list a $385 price. That is a separate competition configuration, so Twin H-Power air cleaners or dual carburetors do not establish a 7-X engine.

Transmissions, Axles, and Road Manners

The synchronized three-speed could be ordered with overdrive, while Dual-Range Hydra-Matic supplied four forward ranges through a fluid coupling. Hudson matched the rear axle to the transmission: 4.09 or 4.55 ratios served manual and overdrive combinations, while Hydra-Matic used 3.07 gearing.

Independent coil-spring front suspension, angled rear leaf springs, direct-acting shocks, and front and rear stabilizers worked with the low Step-Down structure. Bendix Duo-Servo 11-inch drums used Hudson's Triple-Safe arrangement, which retained a mechanical reserve system alongside the hydraulic service brakes. Vacuum power assist was optional.

Four Ways to Buy a Hornet

Series 7D included a four-door sedan, Club Coupe, Hollywood Hardtop, and Convertible Brougham. Salon Lounge interiors varied by body: sedans and Club Coupes used coordinated cloth and Plasti-hide, Hollywoods used snowflake nylon cord with optional tri-color treatment, and convertibles used leather with Plasti-hide trim.

The 1954 palette was unusually broad, with 14 single colors and 22 listed two-tone combinations. Green Gold and Lipstick arrived during the model year, while a later paint bulletin discontinued Pacific Blue Green and Royal Red.

Identifying an Individual Car

A Series 7D claim starts with the model prefix and serial plate on the right-front door hinge post. Hudson also stamped the serial on the right frame rail near the dash, and the original engine carried the matching number at the upper-right front face of the block. Those numbers establish more than badges, carburetors, or a fresh paint combination can.

The published 24,833 total combines regular Hornets and the lower-priced Hornet Special. Until a stronger ledger or registry dataset is available, it should not be divided into Series 7D body styles or Twin H-Power and 7-X counts.

1954 Hornet two-door rear three-quarter viewChristopher Ziemnowicz via Wikimedia Commons · CC0

Price history

Values

Nominal dollars from original price sheets, auction archives, and approved value references.

Original Price

Market Observations

  • Price guide value $19,600

    Jul 31, 2026 · Hagerty Valuation Tools · Current guide point

    July 2026 #3 good-condition benchmark for the exact 1954 Hudson Hornet two-door Club Coupe with the standard 308cid/160hp single-carburetor engine. · unknown · good Hagerty showed $19,600 for the exact Club Coupe and standard-engine selection when accessed on 2026-07-31. This is an unadjusted guide value, not a completed transaction or individual-car authentication, and it must not be applied to Twin H-Power sedans, Hollywood hardtops, convertibles, or 7-X cars.
  • Auction sale $19,250

    Feb 14, 2024 · Bring a Trailer

    Series 7D four-door sedan 7319282 with the 308, Twin H-Power induction, Hydra-Matic, an older repaint and engine rebuild, and surviving dealer provenance. · modified · fair Bring a Trailer records the $19,250 completed no-reserve sale. Added electric fuel pump, removed rear Panhard bar, underbody corrosion, cracked or delaminating glass, and inoperative heater fan and fuel gauge make this a modified fair-condition comparison rather than an original or restored benchmark.
  • Auction sale $25,000

    Sep 25, 2023 · Bring a Trailer

    Series 7D four-door sedan 7306064 with the 308, Twin H-Power induction, Hydra-Matic, power steering, and a circa-2019 repaint and interior refurbishment. · restored · good Bring a Trailer records the $25,000 completed no-reserve sale. The four-door body, Twin H-Power, automatic transmission, refurbishment, bumper indentations, inoperative radio and clock, and New Hampshire registration rather than a title materially affect comparison.

Values move with paperwork, originality, options, condition, venue, and body style. High bids and guide values are labeled separately from completed sales.

Reference records

Options, Colors & Components

Source-backed details for trim, chassis, production, and authenticity.

Engine Details

Hudson 308 with Twin H-Power dual Carter carburetionChristopher Ziemnowicz via Wikimedia Commons · Public domain
  • Standard 308 160 gross hp at 3,800 rpm; 264 lb-ft at 1,800 rpm · standard Series 7D Hornet · engine assembly / specification
  • Twin H-Power 308 170 gross hp at 4,000 rpm; 278 lb-ft at 2,600 rpm · optional Series 7D Hornet · engine assembly / specification
  • Standard carburetor Carter WGD 2115S two-barrel · 160-hp 308 · carburetor / part number
  • Twin H-Power carburetors Two Carter WA-1 2113-S one-barrels · 170-hp Twin H-Power 308 · carburetor / part number
  • Bore and stroke 3.8125 x 4.50 inches; four main bearings; mechanical lifters · all 308 configurations · engine assembly / specification
  • Cylinder-head choices Aluminum 7.5:1 standard; cast iron 7.0:1 optional · Series 7D 308 · cylinder head / specification

Transmission

  • Factory transmission Synchronized three-speed: 2.571, 1.68, 1.00; reverse 3.489
  • Factory transmission Optional overdrive: 0.70 with the synchronized three-speed
  • Factory transmission Dual-Range Hydra-Matic: 3.8195, 2.634, 1.45, 1.00; reverse 4.3045

Options

Three 308 ConfigurationsClassic Muscle · Reference illustration

Paint

1954 Hornet Flight-Line grille, hood scoop, and windshieldChristopher Ziemnowicz via Wikimedia Commons · CC0

Interior

1954 Hornet front cabin, bench seat, and instrument panelChristopher Ziemnowicz via Wikimedia Commons · CC0

Authenticity

Transmission-Specific AxlesClassic Muscle · Reference illustration
  • Series 7D identity Model prefix 7D followed by the 1954 production serial sequence · Plate on the right-front door hinge post and stamping on the top of the right frame rail near the dash · fraud detection
  • Engine and chassis serial agreement Engine number matches the vehicle serial number for the original installation · Front face of the cylinder block at the top-right corner, compared with the door-post and frame numbers · numbers matching
  • Twin H-Power installation Two Carter WA-1 2113-S carburetors with correct manifolding, linkage, air cleaners, and individual-car evidence · Engine bay, carburetor tags, casting details, period paperwork, and restoration history · date correctness
  • 7-X competition configuration Competition-parts equipment supported by component inspection and provenance beyond ordinary Twin H-Power hardware · Engine specifications, competition parts, period receipts, race history, and expert inspection · fraud detection
  • Transmission and axle pairing 4.09 or 4.55 manual/overdrive gearing, or 3.07 with Dual-Range Hydra-Matic, as supported by the individual build · Transmission type and identifiers, axle ratio, speedometer gearing, paperwork, and service history · date correctness
  • Paint and interior Door-hinge paint code and surviving trim evidence correspond to a documented 1954 combination and body style · Right-front door upper hinge code, hidden original finish, upholstery layers, top material, and restoration records · trim correctness

Still Researching

  • production The reviewed 24,833 total combines Hornet Special Series 6D and Hornet Series 7D; no reliable Series 7D body-style, Twin H-Power, transmission, or 7-X split was found.
  • interior Body-specific materials, color families, and the D-series numbered trim-style identifier are documented, but the reviewed records do not reproduce the Preliminary 1954 Parts Catalog chart needed to map every Series 7D trim number and paint pairing.
  • authenticity markers Model-level references cannot prove that Twin H-Power or 7-X equipment was originally supplied on an individual car, and no universal surviving factory build-record service was found.

Codes & names

Names & Engine Codes

Common names and codes are grouped so LS6 references point to the same engine, not separate pages.

Step-Down ChassisClassic Muscle · Reference illustration
1954 Hudson 308 1954 Hudson 308 inline six
1954 Hornet 308 1954 Hudson 308 inline six
1954 Hudson 308 two-barrel 1954 Hudson 308 inline six
1954 Hudson Twin H-Power 308 1954 Hudson 308 inline six
1954 Hudson 7-X 1954 Hudson 308 inline six

Photo and video gallery

Gallery

4 photos and videos

Sources & Documentation

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