ENGINE CODES
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Thunderbird 390 Special V-8 (315 Horsepower)
(Standard until January 1, 1968, then discontinued)
4-Barrel Autolite 4300 Carburetor/Dual Exhaust System
Thunder Jet 429 V-8 (360 Horsepower)
(Optional until January 1, 1968, then added as standard equipment)
4-Barrel Autolite 4300 Carburetor/Dual Exhaust System |
1968 Thunderbird Production by Engine Type:
Tudor Hardtop—390: 4; 429: 9,973
Tudor Landau—390: 1; 429: 33,028
Fordor Landau—390: 1; 429: 21,924 |
Two Door
Length
Width
Height
Weight |
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206.9 Inches
77.3 Inches
52.6 Inches
4,366 (Hardtop) 4,372 (Landau) |
360 Horses Requires
Additional Stopping Power

New "Floating Caliper" Power Front Disc Brakes were an improvement
over 1967. They were fast cooling, simpler in design, easier to service,
and provided a high resistance to fade.
Never before had the Thunderbird had such powerful and dependable brakes.
Automotive pundits of the time rated the T-Bird's brakes as among the very
best available on any car, regardless of make, model, or price.
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Farewell To the 390 Special V-8
1968 would be the last year Thunderbird utilized the 390 Special V-8 engine.
In fact, only a very few 390's were installed
in Thunderbirds after the 1967 model year. We believe that Ford planners
decided to include the new 429 engine as a mandatory option virtually from
the beginning of production, in order to keep the Thunderbird competitive
in its personal luxury market segment. All of the competitors offered higher
displacement engines as standard equipment for 1968, which included the
Cadillac Eldorado, Buick Riviera, Oldsmobile Toronado, Imperial Crown Coupe,
and even the T-bird's sister model, the new 1969 Continental Mark III, introduced early during the 1968 production year.
Introduced as standard equipment for the 1961 model year, the 390 faithfully
served the Thunderbird, as well as many other Ford models, throughout the
sixties. The 390 would live on past 1968, for a few more years, in the
engine bays of other cars, such as the Galaxie 500 and LTD, but would never
again serve duty in a Thunderbird engine bay. Emission control equipment,
in its infancy in 1968, would rob engines of considerable power. The Thunderbird
was also getting quite heavy at this point, as more of them were loaded
up with extra luxuries such as air conditioning and power windows and seats.
Performance was really beginning to suffer due to these reasons, and the
competition was providing more cubic inches and more horsepower, which
required that T-bird do the same. It is for this reason, among others,
that the new Thunder Jet 429 became standard equipment on January 1, 1968.
Ironically, even the powerful 429 would have a short relationship with
the Thunderbird, as the car continued to grow longer and heavier in the
seventies. The 429's sister, the 460 (originally designed for the Lincoln
Division), would be made available as an option for the 1972 model year,
and would be standard by 1974, just in time for the gas shortages that
struck the United States in October 1973, shortly after the 1974 model
year introduction.
Soon after, smaller cars with smaller engines and better fuel efficiency
would forever change the American landscape.
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