The Ford Mustang first appeared in the marlet in 1964 and was immediately popular to the customer, for its style and its capabilities. The largest engine offering of the time was the 289 V-8 K-code small block engine which was sufficient but enthusiasts wanted and demanded more power.
The base engine was a six-cylinder power plant. The body style configurations included coupe, convertible and fastback. In its first year of production over 500,000 examples were produced.
Ford turned to SCCA racing to stir even more popularity for the car and to prove its true potential. Unfortunately, SCCA rules for sports cars required two seats which the Mustang failed to qualify for since it had seating for four.
The Mustang was a new breed with plenty of room to grow and improve. Ford turned to the legendary Carroll Shelby who had aided them in securing a LeMans victory with their GT 40s. He was also well known for his Ford powered Shelby Cobras which had dominated the SCCA circuit for many years.
Under the fiberglass hood was a K-code engine that had been modified with 715cfm 4-barrel carburetors on high-rise intake manifolds, aluminum oil pans and fabricated tube headers feeding dual exhausts with glass pack mufflers. The engine was concealed with a fiberglass hood. An aluminum case Borg-Warner T-10 four-speed manual gearbox was matted to this potent engines and set power to the rear wheels.
Since the Mustang was now packing extra power, the rest of the components were modified to respond appropriately. The suspension was reinforced with front A-arms, rear axle trailing arms, and Koni shocks. The brakes were enlarged and quick steering adapters were installed. Compling with the two seater requirement was easy; the back seat was removed and replaced with a fiberglass package shelf.
There was little changed to the GT350 during the 1966 year. Peter Brock, Shelby’s designer, came up with some simple modifications that slightly changed the aesthetics of the car but improved its capabilities. Air-intake scoops were added to force air to the rear brake pads which aided in keeping them cool. The C-pillar sail panel was removed and replaced with triangular windows.
A convertible option was added to the Shelby line-up, available with either a 302- or 428-cubic-inch eight-cylinder engine. The High Performance 289 cubic-inch V8 was no longer offered on the Ford or Shelby versions of the Mustang.
The 302 was standard on the GT350, equipped with an aluminum intake manifold and Holley 600 CFM carburetor capable of producing 250 horsepower. 1968 also marked the year that Ford took over production of the Shelby vehicles with operations moving to Livonia, Michigan.
The styling modifications for 1968 were minor. The front of the vehicle was restyled resulting in an aggressive appearance. The headlights switched back to the single seven-inch unit configuration with Lucas fog lamps positioned inside the grill. The hood was once again a fiberglass unit with repositioned scoops and air-extraction louvers.
The documentation stated the engine produced 335 horsepower when actually it was over 400 with 440 foot-pounds of torque. These were the fastest Shelby production vehicles to date and offered superb handling, braking and most of all, acceleration. Due to the extra power, the brakes were enlarged and new components such as under-hood suspension bracing and staggered rear shocks prevented wheel hop and axle wind-up.
In 2005 at the New York International Auto Show, Ford and Shelby announced their plans for the production of a Ford Shelby Mustang GT500 with sales beginning in 2007. The car will be equipped with a 5.4 liter supercharged eight-cylinder engine with horsepower in the neighborhood of 475.
And in 2006 the rights to own the first modern Shelby Mustang produced sold at the Barrett-Jackson Collector Car Auction for 648,000 with the proceeds benefiting the Carroll Shelby Children’s Foundation.
Articles similar to 1966 Shelby Gt include: