Ford
Thunderbird F-code (supercharged)

Why it matters

The F-code was the supercharged top version of the 1957 two-seat Thunderbird. Bonhams calls the 212 F-Birds the first post-war catalogued supercharged production cars, and the option lasted only one model year after NASCAR banned supercharging and fuel injection.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Each kind of rarity is rated separately and never combined.

Production

Every figure says what it counts.

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

Ford offered the F-code as an answer to the fuel-injected 1957 Corvette, using a McCulloch/Paxton VR57 centrifugal supercharger on the 312 cubic-inch V-8 rather than developing fuel injection. The package added over 10 per cent to the Thunderbird's base price, and about 200 of the 21,380 Thunderbirds built in 1957 received it.

Mecum says the option disappeared with the AMA racing ban of February 1957. Counts of F-code cars vary by source: about 200, 212 and 196 are all quoted.

Technical specifications

Engine

Transmission & drivetrain

Chassis, body & dimensions

Performance

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

Identification guide

How to tell an original from a replica or later conversion.

The F in the chassis number marks the supercharged engine, as in F7FH363673; the dual four-barrel car carries an E. The engine has a McCulloch/Paxton VR57 supercharger with a Holley four-barrel carburetor sealed inside a cast-aluminium housing, and 8.5:1 compression. One lot was confirmed by its F prefix and a copy of the original factory invoice.

Sources

Each number links to the exact facts it supports.

1. 1
   RM Sotheby's – 1957 Ford Thunderbird 'F-Code' Level B

   • 200 about 200 of 21,380 1957 Thunderbirds delivered with the F-Code package (registries give 194–211)

   Accessed 2026-11-12
2. 2
   1957 Ford Thunderbird 'F-Code' (lot R0058) Level C RM Sotheby's · 2023-03-01

   • named for the first letter of the Thunderbird's chassis number
   • 312-cu. in. V-8 engine
   • pressure-sealed Holley four-barrel carburetor

   Accessed 2026-11-12
3. 3
   1957 Ford Thunderbird F-Code (lot S181) Level C Mecum Auctions · 2018-01-13

   • lower 8.5:1 compression
   • generated an honest 300 HP
   • 300 HP and 320 lb-ft of torque

   Accessed 2026-11-12
4. 4
   1957 Ford F-Code Supercharged Thunderbird Convertible (lot 113) Level C Bonhams · 2026-01-23

   • enclosing the entire carburetor in a cast aluminum housing
   • The effective boost was 5-7 pounds per square inch
   • advertised (and probably understated) 300hp
   • Most F-Birds were specified with Ford's superior Ford-O-Matic automatic transmission although a 3-speed manual with automatic overdrive
   • Independent Ball Joint with Coil Springs front
   • Parallel Leaf Rear Suspension
   • same mechanical specifications as the 1955 and '56 Thunderbirds with a 102 inch wheelbase

   Accessed 2026-11-12