Engineering:Ford Mustang (first generation)

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Mustang (first generation)
1965 Ford Mustang 2D Hardtop Front.jpg
1965 Ford Mustang
Overview
ManufacturerFord
Also calledFord T5[1]
ProductionMarch 1964 – June 1973
Model years1964–1973
Assembly
  • United States: Dearborn, Michigan (Ford River Rouge Complex); Milpitas, California (San Jose Assembly Plant); Edison, New Jersey (Edison Assembly)
  • Australia: Homebush (Homebush Assembly Plant, conversion to right hand drive)
  • Mexico: Mexico City (La Villa Assembly)
  • Netherlands: Amsterdam (Amsterdam Assembly)
  • Peru: Lima (Ford Peru)
  • Venezuela: Valencia (Valencia Assembly)[2][3]
DesignerGale Halderman[4]
Body and chassis
Class
Body style
LayoutFront-engine, rear-wheel-drive
Related
Chronology
SuccessorFord Mustang II

The first-generation Ford Mustang was manufactured by Ford from March 1964 until 1973. The introduction of the Mustang created a new class of automobiles known as pony cars. The Mustang's styling, with its long hood and short deck, proved wildly popular and inspired a host of competition.

It was introduced on April 17, 1964, as a hardtop and convertible with the fastback version to follow in August 1964. Upon introduction, the Mustang, sharing its platform with the Falcon, was slotted into the compact car segment.

With each revision, the Mustang grew in overall dimensions and engine power. The 1971 model saw a drastic redesign. After an initial surge, sales steadily declined as Ford began working on a new generation Mustang. With the onset of the 1973 oil crisis, Ford was prepared, having already designed the smaller Mustang II for the 1974 model year. This new car shared no components with preceding models.

Conception and styling

As Lee Iacocca's assistant general manager and chief engineer, Donald N. Frey was the head engineer for the Mustang project — supervising the development of the Mustang in a record 18 months from September 1962 to April 1964.[5][6] — while Iacocca himself championed the project as Ford Division general manager.

Drawing on inspiration from the mid-engined Ford Mustang I concept vehicle, Lee Iacocca ordered development of a new "small car"[7] to vice-president of design at Ford, Eugene Bordinat.

Bordinat tasked Ford's three design studios (Ford, Lincoln-Mercury, and Advanced Design) to create proposals for the new vehicle.[8]

The design teams had been given five goals[9] for the design of the Mustang: It would seat four, have bucket seats and a floor mounted shifter, weigh no more than 2,500 pounds (1,100 kg) and be no more than 180 inches (5 m) in length, sell for less than US$2,500 (equivalent to $20,609 in 2019)[10], and have multiple power, comfort, and luxury options.

Design

The Ford design studio ultimately produced the winning design in the intramural contest, under Project Design Chief Joe Oros and his team of L. David Ash, Gale Halderman, John Foster, and George Schumaker. This design was called the Cougar by the design team.[11][12][7]

Oros states:

In a 2004 interview, Oros recalls the planning behind the design:[13]

David Ash

L. David Ash is often credited with the actual styling of the Mustang. Ash, in a 1985 interview speaking of the origin of the Mustang design, when asked the degree of his contribution, said:

Gale Halderman

Gale Halderman, in a 2002 interview with Collectible Automobile, spoke of the Mustang's evolution through the Ford design studio:

To decrease developmental costs, the Mustang used chassis, suspension, and drivetrain components derived from the Ford Falcon and Fairlane. It used a unitized platform-type frame from the 1964 Falcon and welded box-section side rails, including welded crossmembers. Although hardtop Mustangs accounted for the highest sales, durability problems with the new frame led to the engineering of a convertible first, which ensured adequate stiffness. The overall length of the Mustang and Falcon was identical, although the Mustang's wheelbase was slightly shorter. With an overall width of 68.2 in (1,732 mm), it was 2.4 in (61 mm) narrower, yet the wheel track was nearly identical. Shipping weight, approximately 2,570 lb (1,166 kg) with the straight six-cylinder engine, was also similar to the Falcon. A fully equipped V8 model weighed approximately 3,000 lb (1,361 kg). Although most of the mechanical parts were from the Falcon, the Mustang's body was completely different; sporting a shorter wheelbase, wider track, lower seating position, and lower overall height. An industry first, the "torque box" was an innovative structural system that greatly stiffened the Mustang's construction and helped contribute to better handling.

Gale Haldeman spoke of the engineering and design of the car in his interview, stating:

The idea for a fastback originated with Joe Oros as well and was designed in Charlie Phaneuf's studio.[16] Haldeman recalls:[16]

An additional 4-door model was designed by Dave Ash as a clay model, but was not considered.[7]

1964½–1966

Mustang 1964½–1966
Ford Mustang (1964) - 28540253076.jpg
1964 Ford Mustang
Overview
Production
  • April 1964 – July 1964 (1964½ series)
  • August 1964 – July 1965 (1965 series)
  • August 1965 – July 1966 (1966 series)
Assembly
  • Dearborn, Michigan
  • San Jose, California
  • Metuchen, New Jersey
  • Valencia, Venezuela
  • Mexico City, Mexico[2][3]
Designer
  • Joe Oros
  • David Ash
  • Gale Haldeman
  • Charlie Phaneuf (fastback)
  • Philip T. Clark (Mustang I concept)
  • John Najjar (Mustang I concept)
Body and chassis
Body style
Related1965–1966 Shelby Mustang G.T.350
Powertrain
Engine
  • 170 cu in (2.8 L) Thriftpower I6
  • 200 cu in (3.3 L) Thriftpower I6
  • 260 cu in (4.3 L) small block V8
  • 289 cu in (4.7 L) small block V8
  • 289 cu in (4.7 L) small block HiPo V8[17][18]
Transmission
Dimensions
Wheelbase108 in (2,743 mm)
Length181.6 in (4,613 mm)
Width68.2 in (1,732 mm)
Height51.2 in (1,300 mm)[19]
|uk|Kerb|Curb}} weight2,445 lb (1,109 kg) (base)[20]

Since it was introduced four months before the normal start of the 1965 production year and manufactured alongside 1964 Ford Falcons and 1964 Mercury Comets, the earliest Mustangs are widely referred to as the "1964½" model by enthusiasts.[21] Nevertheless, all 1964½ cars were given 1965 U.S. standard VINs at the time of production, and – with limited exception to the earliest of promotional materials[22] – were marketed by Ford as 1965 models.[23] The low-end model hardtop used a "U-code" 170 cu in (2.8 L) straight-6 engine[24] borrowed from the Falcon, as well as a three-speed manual transmission and retailed for US$2,368 (equivalent to $19,521 in 2019)[10]. Standard equipment for the early 1965 Mustangs included black front seat belts, a glove box light, and a padded dashboard.[25] Production began in March 1964 and Mustang Serial Number One (5F08F100001) was sold on April 14, 1964, at the George Parsons Ford dealership in St. John's, Newfoundland, Canada.[26] Official introduction followed on April 17 at the 1964 World's Fair. The V8 models were identified with a badge on the front fender that spelled out the engine's cubic inch displacement ("260" or "289") over a wide "V." This emblem was identical to the one on the 1964 Fairlane.

Several changes to the Mustang occurred at the start of the "normal" 1965 model year in August 1964, about four months after its introduction. These cars are known as "late 65's". The engine lineup was changed, with a 200 cu in (3.3 L) "T-code" engine that produced 120 hp (89 kW; 122 PS). Production of the Fairlane's "F-code" 260 cu in (4.3 L) engine ceased when the 1964 model year ended. It was replaced with a new 200 hp (150 kW) "C-code" 289 cu in (4.7 L) engine with a two-barrel carburetor as the base V8. An "A-code" 225 hp (168 kW; 228 PS) four-barrel carbureted version was next in line, followed by the unchanged 289 HiPo "K-code" equipped with a 4-barrel Autolite 4100 carburetor that was rated at 271 hp (202 kW; 275 PS) at 6000 rpm and 312 lb⋅ft (423 N⋅m) at 3400 rpm.[27] The DC electrical generator was replaced by a new AC alternator on all Fords (a way to distinguish a 1964 from a 1965 is to see if the alternator light on the dash says "GEN" or "ALT").

GT Equipment Group

The Mustang GT version was introduced as the "GT Equipment Package" and included a V8 engine (most often the 225 hp, 168 kW, 228 PS "289"), grille-mounted fog lamps, rocker-panel stripes, and disc brakes. In the interior, the GT option added a different instrument panel that included a speedometer, fuel gauge, coolant temperature gauge, oil pressure gauge, and an amp meter in five round dials, but the gauges were not marked with numbers.[28] A four-barrel carbureted engine was available with any body style. Additionally, reverse lights were an option added to the car from August 1964 production. The Mustang was originally available as either a hardtop or convertible, but during the car's early design phases, a fastback model was strongly considered. In 1965, the Shelby Mustang was introduced, available only in a newly introduced fastback body version with its swept-back rear glass and distinctive ventilation louvers.[29] In 1965 they built 15,079 Mustangs that featured the GT Equipment Group.[30] For 1966, they built 25,517 GTs.[31] According to Jim Smart production guide, the fastback would have been the most common, followed by the coupe and then the convertible.

Options

The standard interior features of the 1965 Mustang included adjustable driver and passenger bucket seats, an AM radio, and a floor-mounted shifter in a variety of color options. Ford added additional interior options during the 1965 model year. The Interior Decor Group was popularly known as "Pony Interior" due to the addition of embossed running ponies on the seat fronts and also included integral armrests, woodgrain appliqué accents, and a round gauge cluster that would replace the standard Falcon instrumentation. Also available were sun visors, a (mechanical) remote-operated mirror, a floor console, and a bench seat. Ford later offered an under-dash air-conditioning unit and discontinued the vinyl with cloth insert seat option, offered only in early 1965 models. One option designed strictly for fun was the Rally-Pac. Introduced in 1963 after Ford's success at that year's Monte Carlo Rally and available on other Ford and Mercury compacts and intermediates, the Rally-Pac was a combination clock and tachometer[32] mounted to the steering column. It was available as a factory-ordered option for $69.30. Installed by a dealer, the Rally-Pac was priced at $75.95. A 14-inch wheel option was available for Rally-Pac and GT350R vehicles widening front and rear track to 57.5 inches. A compass, rear seat belts, A/C, and backup lights were also optional.[32]

A nationwide survey of owners by Popular Mechanics included many complaints about legroom.[33] Fuel economy for the base V8 was good for the period, with a test by Popular Mechanics rating the optional 260 cubic inch engine with automatic transmission achieving 20.93 mpg‑US (11.24 L/100 km; 25.14 mpg‑imp) at a steady 60 mph (97 km/h).[33] When equipped with the 289 "HiPo" engine and a 4.11 rear axle ratio, the 1965 Mustang achieved 0-60 mph (97 km/h) in 5.2 seconds and a 14 mile (402 m) time of 14.0 seconds at 100 mph (161 km/h).[34]

The 1966 Mustang debuted with moderate trim changes including a new grille, side ornamentation, wheel covers, and gas cap. Ford's new C4 "Cruise-O-Matic" three-speed automatic transmission became available for the 225 hp V8. The 289 "HiPo" K-code engine was also offered with a C4 transmission, but it had stronger internals and can be identified by the outer casing of the servo which is marked with a 'C'. The long-duration solid-lifter camshaft that allowed the high-revving 289 to make the horsepower it was known for, was not friendly for a low stall speed automatic torque converter. The "HiPo" could be spotted by the 1-inch-thick (25 mm) vibration damper, (compared to 1/2 inch on the 225-hp version) and the absence of a vacuum advance unit on the dual point distributor. With the valve covers off, there is a large letter "K" stamped between the valve springs, along with screw-in studs (vs. a pressed-in stud for other 289s) for the adjustable rocker arms. A large number of new paint and interior color options, an AM/eight-track sound system, and one of the first AM/FM mono automobile radios were also offered. It also removed the Falcon instrument cluster; the previously optional features, including the round gauges and padded sun visors, became standard equipment. The Mustang would be the best-selling convertible in 1966, with 72,119 sold, beating the number two Impala by almost 2:1.[35]

The 1965 and 1966 Mustangs are differentiated by variations in the exterior, despite the similar design. These variations include the cove molding on the rear quarter panels behind the doors. From August 1964 production, the molding was a single vertical piece of chrome, while for 1966 models the molding was smaller in height and had three horizontal bars extending forward from the design, resembling an "E". The front intake grilles and ornaments were also different. The 1965 front grille used a "honeycomb" pattern, while the 1966 version was a "slotted" style. While both model years used the "Horse and Corral" emblem on the grille, the 1965's had four bars extending from each side of the corral, while these bars were removed for the 1966s. During the 1966 model year, a 'High Country Special' limited edition was available with 333 units sold in Colorado, Wyoming, and Nebraska.[36]

When Ford wanted to introduce the Mustang in Germany, they discovered that the Krupp company had already registered the name for a truck.[37] The German company offered to sell the rights for US$10,000. Ford refused and removed Mustang badges from exported units, instead, they named the cars T-5 (a pre-production Mustang project name) for the German market until 1979 when Krupp copyrights expired.[37]

1965 Mustang AWD prototype

In 1965, Harry Ferguson Research purchased three Mustang hardtops and converted them to 4x4 in an attempt to sell potential clients on their FF AWD system.[38] A similar system was used in the Ferguson P99 Formula One race car, and would go on to be featured in the Jensen FF that is considered the first AWD non all-terrain passenger car. As in the Jensen FF, the AWD Mustangs also featured anti-lock braking that would later be known as ABS.[39] The Dunlop Maxaret system was modified from its original use on airplanes.[40]

1966 Right-Hand-Drive Mustang

Ford Australia organized the importation and conversion of 1966 model year Mustangs to right-hand-drive (RHD) for the Australian market.[41][42] This coincided with the launch of the new XR Falcon for 1966, which was marketed as the "Mustang-bred Falcon". To set the official conversion apart from the cottage industry, the RHD Mustangs were called the "Ford Australia Delivered Mustang" and had compliance plates similar to the XR Falcon. About 209 were imported by Ford Australia – 48 units were imported and converted in 1965[43] and the further 161 were done in 1966.

Engines

engine displacement, type, carburetor type max. power at rpm max. torque at rpm
170 cu in (2.8 L) Thriftpower I6 (1964) 1-barrel 105 bhp (78 kW; 106 PS) @ 4,400 156 lb⋅ft (212 N⋅m) @ 2,400
200 cu in (3.3 L) Thriftpower I6 (1965–1966) 1-barrel 120 bhp (89 kW; 122 PS) @ 4,400 190 lb⋅ft (258 N⋅m) @ 2,400
260 cu in (4.3 L) small block V8 (1964) 2-barrel 164 bhp (122 kW; 166 PS) @ 4,400 258 lb⋅ft (350 N⋅m) @ 2,200
289 cu in (4.7 L) small block V8 (1965–1966) 2-barrel 200 bhp (149 kW; 203 PS) @ 4,400 282 lb⋅ft (382 N⋅m) @ 2,400
289 cu in (4.7 L) small block V8 (1964) 4-barrel 210 bhp (157 kW; 213 PS) @ 4,400 300 lb⋅ft (407 N⋅m) @ 2,800
289 cu in (4.7 L) small block V8 (1965–1966) 4-barrel 225 bhp (168 kW; 228 PS) @ 4,800 305 lb⋅ft (414 N⋅m) @ 3,200
289 cu in (4.7 L) small block HiPo V8 (1964–1966) 4-barrel 271 bhp (202 kW; 275 PS) @ 6,000 312 lb⋅ft (423 N⋅m) @ 3,400
[44][45]

1967–1968

Mustang 1967–1968
Nationale oldtimerdag Zandvoort 2010, 1968 FORD MUSTANG, DL-16-53 pic2.JPG
1968 Ford Mustang hardtop
Overview
ProductionAugust 1966 – August 1968[46]
Assembly
  • Dearborn, Michigan
  • San Jose, California
  • Metuchen, New Jersey
  • Valencia, Venezuela
  • Mexico City, Mexico[2][3]
  • Lima, Peru
Designer
Body and chassis
Body style
Powertrain
Engine
  • 200 cu in (3.3 L) Thriftpower I6
  • 289 cu in (4.7 L) small block V8
  • 302 cu in (4.9 L) small block V8
  • 390 cu in (6.4 L) FE V8
  • 427 cu in (7.0 L) FE HiPo V8
  • 428 cu in (7.0 L) Cobra Jet V8[48]
Transmission
Dimensions
Wheelbase108 in (2,743 mm)
Length183.6 in (4,663 mm)
Width70.9 in (1,801 mm)
Height51.6 in (1,311 mm)
|uk|Kerb|Curb}} weight2,758 lb (1,251 kg) (base)[49]

The 1967 model year Mustang was the first significant redesign of the original model. Ford's designers began drawing up a larger version even as the original was achieving sales success, and while "Iacocca later complained about the Mustang's growth, he did oversee the redesign for 1967."[50] The major mechanical feature was to allow the installation of a big-block V8 engine. The overall size, interior, and cargo space were increased. Exterior trim changes included concave taillights, side scoop (1967 model) and chrome (1968 model) side ornamentation, square rear-view mirrors, and usual yearly wheel and gas cap changes. The high-performance 289 option was placed behind the newer 335 hp (250 kW; 340 PS) 390 cu in (6.4 L) FE engine from the Ford Thunderbird, which was equipped with a four-barrel carburetor. During the mid-1968 model year, a drag racer for the street could be ordered with the optional 428 cu in (7.0 L) Cobra Jet engine which was officially rated at 335 hp (250 kW; 340 PS) all of these Mustangs were issued R codes on their VINs.[51]

The 1967 Deluxe Interior was revised, discontinuing the embossed running horse motif on the seatbacks (the source for the "pony interior" nickname) in favor of a new deluxe interior package, which included special color options, brushed aluminum (from August 1966 production) or woodgrain dash trim, seat buttons, and special door panels. The hardtop also included upholstered quarter trim panels, a carryover from the 1965–1966 deluxe interior. The 1967 hardtop also had the chrome quarter trim caps, carried over from 1965–1966, but these were painted to match the interior in 1968 models. The 1967 deluxe interior included stainless steel-trimmed seat back shells, similar to those in the Thunderbird. These were dropped at the end of the 1967 model year and were not included in the woodgrain-trimmed 1968 interior. The deluxe steering wheel, which had been included in the deluxe interior for 1965 and 1966, became optional, and could also be ordered with the standard interior. The 1968 models that were produced from January 1968 were also the first model year to incorporate three-point lap and shoulder belts (which had previously been optional, in 1967–1968 models) as opposed to the standard lap belts. The air-conditioning option was fully integrated into the dash, the speakers and stereo were upgraded, and unique center and overhead consoles were options. The fastback model offered the option of a rear fold-down seat, and the convertible was available with folding glass windows. Gone was the Rally-Pac, since the new instrument cluster had provisions for an optional tachometer and clock. Its size and shape also precluded the installation of the accessory atop the steering column.[52] The convenience group with four warning lights for low fuel, seat belt reminder, parking brake not released, and door ajar were added to the instrument panel, or, if one ordered the optional console and A/C, the lights were mounted on the console.[53]

Changes for the 1968 model increased safety with a two-spoke energy-absorbing steering wheel, along with newly introduced shoulder belts. Other changes included front and rear side markers, "FORD" lettering removed from the hood, rearview mirror moved from frame to windshield, a 302 cu in (4.9 L) V8 engine option, and C-Stripe graphics were added.[54]

The California Special Mustang, or GT/CS, was visually based on the Shelby model and was only sold in Western states. Its sister, the 'High Country Special', was sold in Denver, Colorado. While the GT/CS was only available as a coupe, the 'High Country Special' model was available in fastback and convertible configurations during the 1966 and 1967 model years, and as a coupe for 1968.[51]

The 1968 Ford Mustang GT Fastback got a popularity boost after it was featured in the 1968 film Bullitt, starring Steve McQueen.[55] In the film, McQueen drove a modified 1968 Mustang GT 2+2 Fastback chasing a Dodge Charger through the streets of San Francisco .[56]

On January 10, 2020, the car that was driven by McQueen, later owned by Robert Kiernan, and subsequently by his son Sean, was sold at Mecum Auctions for a record price of $3.7 million (~$NaN in 2019), including auction fees.[57]

Engines

Engine displacement, type Year Engine Code carburetor type max. power at rpm max. torque at rpm
200 cu in (3.3 L) Thriftpower I6 1968 T 1-barrel 115 bhp (86 kW; 117 PS) @ 4,400 190 lb⋅ft (258 N⋅m) @ 2,400
1967 120 bhp (89 kW; 122 PS) @ 4,400
289 cu in (4.7 L) small block V8 1968 C 2-barrel 195 bhp (145 kW; 198 PS) @ 4,600 288 lb⋅ft (390 N⋅m) @ 2,600
1967 200 bhp (149 kW; 203 PS) @ 4,400 282 lb⋅ft (382 N⋅m) @ 2,400
302 cu in (4.9 L) small block V8 1968 F 210 bhp (157 kW; 213 PS) @ 4,600 300 lb⋅ft (407 N⋅m) @ 2,600
289 cu in (4.7 L) small block V8 1967 A 4-barrel 225 bhp (168 kW; 228 PS) @ 4,800 305 lb⋅ft (414 N⋅m) @ 3,200
302 cu in (4.9 L) small block V8 1968 J 230 bhp (172 kW; 233 PS) @ 4,800 310 lb⋅ft (420 N⋅m) @ 2,800
289 cu in (4.7 L) small block HiPo V8 1967 K 271 bhp (202 kW; 275 PS) @ 6,000 312 lb⋅ft (423 N⋅m) @ 3,400
390 cu in (6.4 L) FE V8 1968 X 2-barrel 270 bhp (201 kW; 274 PS) @ 4,400 401 lb⋅ft (544 N⋅m) @ 2,600
1967 S 4-barrel 320 bhp (239 kW; 324 PS) @ 4,800 427 lb⋅ft (579 N⋅m) @ 3,200
1968 325 bhp (242 kW; 330 PS) @ 4,800
428 cu in (7.0 L) Cobra Jet V8 1968 R 335 bhp (250 kW; 340 PS) @ 5,200 440 lb⋅ft (597 N⋅m) @ 3,400
[44][45][58][59]

1969–1970

Mustang 1969–1970
1969 Ford Mustang Mach I, front left (Wings-n-Wheels 2023).jpg
1969 Ford Mustang Mach 1
Overview
ProductionAugust 1968 – September 1970
Assembly
  • Dearborn, Michigan
  • Milpitas, California
  • Metuchen, New Jersey
  • Valencia, Venezuela
  • Mexico City, Mexico[2][3]
DesignerGale Halderman (1966)[60]
Body and chassis
Body style
Powertrain
Engine
  • 200 cu in (3.3 L) Thriftpower I6
  • 250 cu in (4.1 L) Thriftpower I6
  • 302 cu in (4.9 L) small block V8
  • 302 cu in (4.9 L) Boss V8
  • 351 cu in (5.8 L) Windsor V8
  • 351 cu in (5.8 L) Cleveland V8
  • 390 cu in (6.4 L) FE V8
  • 428 cu in (7.0 L) Cobra Jet & Super Cobra Jet V8
  • 429 cu in (7.0 L) Boss V8[61]
Transmission
Dimensions
Wheelbase108 in (2,743 mm)
Length187.5 in (4,762 mm)
Width71.7 in (1,821 mm)
Height50.5 in (1,283 mm)
|uk|Kerb|Curb}} weight3,122 lb (1,416 kg) (base)[62]

The 1969 model year restyle "added more heft to the body" with body length extended by 3.8 inches (97 mm) (the wheelbase remaining at 108 inches), width increased by almost half an inch, and the Mustang's "weight went up markedly too."[63] 1969 was the first model to use quad headlamps placed both inside and outside the grille opening. The corralled grille pony was replaced with the pony and tribars logo, set off-center to the driver's side.[64] The car was longer than previous models and sported convex rather than concave side panels. The fastback body version was named SportsRoof in Ford's literature.[64]

The 1969 model year introduced the Mach 1, with a variety of powerplant options and many new styling and performance features. Distinctive reflective striping was placed along the body sides, with a pop-open gas cap, dual exhausts, matte-black hood with simulated air scoop, and NASCAR-style cable with pin tie-downs.[65] It had steel wheels with white lettered Goodyear Polyglas tires. A functional "shaker" hood scoop – which visibly vibrated by being attached directly to the air cleaner through a hole in the hood – was available, as were tail-mounted wing and chin spoilers and rear window louvered blackout shade. The Mach 1 featured a deluxe interior with simulated wood trim, high-backed seats, extra sound deadening, remote sports mirrors, and other features. The Mach 1 proved popular with buyers with 72,458 cars sold through 1969.[66]

The Boss 302 was created to satisfy Trans Am rules and featured distinctive hockey-stick stripes, while the understated Boss 429 was created to homologate the Boss 429 engine (based on the new Ford 385 series engine) for NASCAR use. The two Boss models received fame on the track and street. A total of 1,628 Boss 302s and 859 Boss 429s were sold through 1969[66] – making these vehicles somewhat rare.

A new "luxury" model became available starting for 1969, available in only the hardtop body style. The 'Grande' featured a soft ride, 55 pounds (24.9 kg) of extra sound deadening, as well as a deluxe interior with simulated wood trim. It was popular with buyers with 22,182 units sold through 1969.[66]

Amidst other special editions, the 1969 Mustang E was offered for those desiring high fuel efficiency. The 1969 Limited Edition Mustang E was a rare (about 50 produced) fastback special model designed for economy. It came with a six-cylinder engine (250 cu in (4.1 L)), a high stall torque converter for the standard automatic transmission, and a low, 2.33:1 rear axle ratio. Mustang E lettering on the rear quarters identified the special Mustang E.[67] Air conditioning was not available on the 'E' model.[65]

The Mustang GT was discontinued in 1969 due to poor sales versus the success of the new Mach 1 with only 5396 GT models sold that year.[68]

A new 250 cu in (4.1 L) Thriftpower I6 engine with 155 hp (116 kW; 157 PS) filled the gap between the existing 200 cu in (3.3 L) Thriftpower I6 and the V8 engine line-up.

Although 1969 continued with many of the same basic V8 engines available on 1968 models, notably a revised 302 cu in (4.9 L) small block engine with 220 hp (164 kW; 223 PS), the 390 cu in (6.4 L) FE with 320 hp (239 kW; 324 PS) and the recently launched 428 cu in (7.0 L) Cobra Jet engine (with or without Ram-Air) with an advertised 335 hp (250 kW; 340 PS), a variety of options and changes were introduced to keep the Mustang fresh and competitive including a new performance V8 available in 250 hp (186 kW; 253 PS) or 290 hp (216 kW; 294 PS) tune known as the 351 cu in (5.8 L) Windsor (351W), which was effectively a stretched and revised 302 cu in (4.9 L) to achieve the extra stroke.

The 428 cu in (7.0 L) Cobra Jet engine continued unchanged in the 1969 and 1970 model years and continued to be advertised at 335 hp (250 kW; 340 PS). If a V or W axle was ordered (3.90 or 4.30 locking ratio) on any Cobra Jet Mustang, engine improvements were added to make it more reliable on the strip. Included was an engine oil cooler (making AC not available as an option), stronger crankshaft and conrods, improved engine balancing, and was named the 'Super Cobra Jet'. These improvements were later referred to as 'Drag Pack'.

The 1969 Shelby Mustang came under Ford's control and was made to look markedly different from regular production Mustangs, despite being built in-house by Ford.[69] The custom styling included a fiberglass front end with a combination loop bumper/grille that increased the car's overall length by 3 inches (76 mm), as well as five air intakes on the hood.[69] Two models were available, GT-350 (with a 351 cu in (5.8 L) Windsor (351W) producing 290 hp (216 kW; 294 PS)) and GT-500 (with the 428 cu in (7.0 L) Cobra Jet engine), in both sportsroof or convertible versions. All 1969–1970 Shelby Mustangs were produced in 1969. Because of dwindling sales, the 789 remaining 1969 cars were given new serial numbers and titled as 1970 models.[69] They had modified front air dam and a blackout paint treatment around the hood scoops.[64][70]

The 1970 model year Mustangs were restyled to be less aggressive and therefore returned to single headlamps which were moved to the inside of the grille opening with 'fins' on the outside of the grille sides. The styling of the 1969 model was deemed to have caused a drop in sales and this prompted the headlamp revisions and simplification of other exterior styling aspects for 1970. In the end, however, the 1969 model year sales exceeded those of 1970.[66] The rear fender air scoops were removed and the taillight panel was flat instead of concave as on 1969 models. The interior options remained mostly unchanged.[70]

1970 model year saw the previous 351W V8 engine options replaced with a new 351 cu in (5.8 L) Cleveland (351C) V8 in either 2V (2-venturi carburetor) or 4V (4-venturi carburetor) versions; however, some early production 1970 Mustangs had the 351W. The 351C 4V (M code) engine featured 11.0:1 compression and produced 300 bhp (224 kW; 304 PS) at 5400 rpm. This new performance engine incorporated elements learned from the Ford 385 series engine and the Boss 302, particularly the poly-angle combustion chambers with canted valves and the thin-wall casting technology.

Ford made 96 'Mustang Twister Special' cars for Ford's Kansas City District Sales Office in late 1969. The Twister Specials were Grabber Orange Mach 1s with special decals. Ford also made a few 'Sidewinders', which were built in Dearborn, shipped to Omaha, and sold in Iowa and Nebraska. They were available in Grabber Green, Grabber Blue, Calypso Coral, and Yellow. The stripes came in the trunk to be installed by dealers.[70][71]

Engines

engine displacement, type, carburetor type max. power at rpm max. torque at rpm
200 cu in (3.3 L) Thriftpower I6 (1970) 1-barrel 120 bhp (89 kW; 122 PS) @ 4,400 190 lb⋅ft (258 N⋅m) @ 2,900
250 cu in (4.1 L) Thriftpower I6 (1969–1970) 1-barrel 155 bhp (116 kW; 157 PS) @ 4,000 240 lb⋅ft (325 N⋅m) @ 2,600
302 cu in (4.9 L) small block V8 (1969–1970) 2-barrel 210 bhp (157 kW; 213 PS) @ 4,600 300 lb⋅ft (407 N⋅m) @ 2,600
351 cu in (5.8 L) Windsor V8 (1969) 2-barrel 250 bhp (186 kW; 253 PS) @ 4,600 355 lb⋅ft (481 N⋅m) @ 2,600
351 cu in (5.8 L) Cleveland V8 (1970) 2-barrel 250 bhp (186 kW; 253 PS) @ 5,400 355 lb⋅ft (481 N⋅m) @ 3,400
351 cu in (5.8 L) Windsor V8 (1969) 4-barrel 290 bhp (216 kW; 294 PS) @ 4,800 385 lb⋅ft (522 N⋅m) @ 3,200
302 cu in (4.9 L) Boss V8 (1969–1970) 4-barrel 290 bhp (216 kW; 294 PS) @ 5,800 290 lb⋅ft (393 N⋅m) @ 2,600
390 cu in (6.4 L) FE V8 (1969) 4-barrel 320 bhp (239 kW; 324 PS) @ 4,600 427 lb⋅ft (579 N⋅m) @ 3,200
351 cu in (5.8 L) Cleveland V8 (1970) 4-barrel 300 bhp (224 kW; 304 PS) @ 5,400 385 lb⋅ft (522 N⋅m) @ 3,400
428 cu in (7.0 L) Cobra Jet & Super Cobra Jet V8 (1969–1970) 4-barrel 335 bhp (250 kW; 340 PS) @ 5,200 440 lb⋅ft (597 N⋅m) @ 3,400
429 cu in (7.0 L) Boss V8 (1969–1970) 4-barrel 375 bhp (280 kW; 380 PS) @ 5,200 450 lb⋅ft (610 N⋅m) @ 3,400
[44][45][72]

1971–1973

Mustang 1971–1973
Ford Mustang coupe -- 11-13-2011 2.jpg
1972 Ford Mustang hardtop
Overview
Production1970–1973
Assembly
  • Dearborn, Michigan
  • San Jose, California
  • Metuchen, New Jersey
  • Valencia, Venezuela
  • Mexico City, Mexico[2][3]
Designer
  • Gale Halderman
  • Semon "Bunkie" Knudsen[73] (1968)
Body and chassis
Body style
Powertrain
Engine
  • 250 cu in (4.1 L) Thriftpower I6
  • 302 cu in (4.9 L) small block V8
  • 351 cu in (5.8 L) Cleveland V8
  • 429 cu in (7.0 L) Cobra Jet & Super Cobra Jet V8
Transmission
Dimensions
Wheelbase109 in (2,769 mm)
Length189.5 in (4,813 mm)
Width74.1 in (1,882 mm)
Height50.1 in (1,273 mm)
|uk|Kerb|Curb}} weight3,560 lb (1,615 kg)[74]

1971

Introduced in September 1970, the 1971 Mustang was green-lighted by Ford's new president, Semon "Bunkie" Knudsen, formerly of General Motors. Again, the revised model grew in size, gaining 3 inches in width to accommodate Ford's big block 429 cu in (7.0 L) V8 without need for an extensive suspension redesign.[75]

As before there were three body styles offered: Hardtop (available in base or Grande trim), SportsRoof (available in base or Mach 1 trim), and convertible (no specific trim packages available).

Hardtop

The new 1971 hardtop featured a prominent "tunnel back" rear window design with flowing rear pillars. Hardtops with 'Grande' trim gained a vinyl roof and Grande badges on the C-pillars.

An additional edition, the Spring Special, was available between March and May 1971,[76] which added Mach 1 styling cues (side stripes, tu-tone paint, urethane bumper, honeycomb grill with sport lamps) to the hardtop.[77][78]

SportsRoof

SportsRoof models were available in base configurations in addition to the Mach 1 and Boss 351 sport/performance options.

The Mach 1s were available with two-tone paint schemes, optional hockey-stick stripes, NACA (NASA) hood scoops (functional on 999 ordered with Ram Air), color-keyed side mirrors, and additional sports/performance options. All Mach 1 models came stock with urethane front bumpers and an alternate grille equipped with amber sportlights. Though the Mach 1 is often associated with the NACA hood (a no-cost option) and other styling cues, base Mach 1s could be had with the standard hood and the 302 2V engine.

Boss 351 models were similar in appearance to the Mach 1, and included a larger black-out hood than Mach 1's, front and rear spoilers, dual exhaust with no rear valance cutouts, and chrome bumpers paired with the sportlamp grille.

Convertible

Convertibles were equipped with a power top and a glass rear window. The 1973 models were the last Mustangs available as a convertible until the 1983 model year.[79][80][81] Convertibles featured no unique exterior visual package of their own during their first year of introduction.

1972

1972 Sprint Edition Mustang
1972 Mustang SportsRoof Sprint edition

Due to tightening emissions regulations, the Boss 351 edition and optional 429 big block were dropped after 1971,[82] leaving the 351 cu in (5.8 L) variants as the largest available engines for 1972 (and 1973).

Exterior differences were virtually unchanged, though all 1972 models were revised with "Fasten Seat Belt" warning lamps on the right side dash panel. The "Decor Group" exterior trim package was also revised, allowing coupe and convertible owners to option their car with two-tone lower body paint, plus the honeycomb sport lamp grille from the Mach 1/Boss 351 and the Mach 1's urethane bumper.

A commemorative Olympic Sprint Edition (also available on the Pinto and Maverick) was released between March and June of this year.[83] Sprint editions were available in Hardtop and Sportsroof variants and featured white paint schemes with light blue accents and USA shield decals on the rear quarter panels. An additional 50 Sprint convertibles were produced exclusively for the 1972 National Cherry Blossom Parade in Washington D.C.[84][85]

1972 saw the end of the special Ford muscle car performance engine era. At mid-year, Ford offered a slightly detuned Boss 351 engine, which could be ordered with any model. A total of 398 Mustangs were built with the drag race-oriented R code engine and were designated as the 351 HO. Mandatory options were the top loader 4-speed, competition N case rear end (427, 428, 429, Boss 351, 351HO), and air conditioning delete. Vacuum-operated Ram Air was not available. However, the HO came with the first full-time cold air induction system in a Mustang, routing cold air via a two-piece plastic duct under the battery tray to the air cleaner snorkel. All 351 HO cars were manufactured in Dearborn, MI.

1973

1973 brought some mild restyling. The urethane front bumper became standard and was enlarged following new NHTSA standards. All Mustang models had their sport lamps replaced with vertical turn signals, as the new bumper covered the previous turn signal locations in the front valance. Both a Mach 1 and base grille were offered, with differing insert patterns.

Mach 1 decals were also revised in 1972 for 1973 models, and the previous hockey stick side stripes of 1971–1972 models became an option on hardtops and convertibles with the addition of the 'Exterior Decor Group'. Magnum 500 wheels, previously optional, were superseded by forged aluminum 5-hole wheels.[79][86][87][88]

The 1973 model year Mustang was the final version of the original pony car,[89] as the model name migrated to the economy, Ford Pinto-based Mustang II the next year.

Other variants

A small number of Mexican-produced cars were manufactured with the 'GT-351' trim package, under license by Shelby de Mexico. Additionally, 14 Shelby Europa vehicles were modified and decaled by Belgian Shelby dealer Claude Dubois for European clientele.[90][91][92][93][94]

Engines

Automakers in the U.S. switched from gross to net power and torque ratings in 1972 (coinciding with the introduction of low-compression engines); thus, it is difficult to compare power and torque ratings between 1971 and 1972.[86][95]

engine displacement, type, carburetor type, VIN code max. power at rpm max. torque at rpm
1971 250 cu in (4.1 L) Thriftpower I6, 1-barrel Carter RBS, L-code 145 bhp (108 kW; 147 PS) @ 4,000 232 lb⋅ft (315 N⋅m) @ 2,600
302 cu in (4.9 L) small block V8, 2-barrel Autolite 2100, F-code 210 bhp (157 kW; 213 PS) @ 4,600 296 lb⋅ft (401 N⋅m) @ 2,600
351 cu in (5.8 L) Cleveland V8, 2-barrel Autolite 2100, H-code 240 bhp (179 kW; 243 PS) @ 5,400 350 lb⋅ft (475 N⋅m) @ 3,400
351 cu in (5.8 L) Cleveland V8, 4-barrel Autolite 4300A, M-code 285 bhp (213 kW; 289 PS) @ 5,400 370 lb⋅ft (502 N⋅m) @ 3,400
351 cu in (5.8 L) Cleveland CJ V8, 4-barrel Autolite 4300A, Q-code (late-MY1971 only; replacement for M-code) 285 bhp (213 kW; 289 PS) @ 5,400 370 lb⋅ft (502 N⋅m) @ 3,400
351 cu in (5.8 L) Cleveland V8 4-barrel Autolite 4300D, R-code (Boss 351 only) 330 bhp (246 kW; 335 PS) @ 5,400 370 lb⋅ft (502 N⋅m) @ 4,000
429 cu in (7.0 L) Cobra Jet V8, 4-barrel Rochester Quadrajet, C-code 370 bhp (276 kW; 375 PS) @ 5,200 450 lb⋅ft (610 N⋅m) @ 3,400
429 cu in (7.0 L) Super Cobra Jet V8, 4-barrel Holley 4150 (780 CFM), J-code 375 bhp (280 kW; 380 PS) @ 5,200 450 lb⋅ft (610 N⋅m) @ 3,400
1972 250 cu in (4.1 L) Thriftpower I6, 1-barrel Carter RBS, L-code 95 bhp (71 kW; 96 PS) @ 3,400 197 lb⋅ft (267 N⋅m) @ 1,600
302 cu in (4.9 L) small block V8, 2-barrel Autolite 2100, F-code 140 bhp (104 kW; 142 PS) @ 4,000 239 lb⋅ft (324 N⋅m) @ 2,000
351 cu in (5.8 L) Cleveland V8, 2-barrel Autolite 2100, H-code 177 bhp (132 kW; 179 PS) @ 4,000 284 lb⋅ft (385 N⋅m) @ 2,000
351 cu in (5.8 L) Cleveland CJ V8, 4-barrel Autolite 4300D, Q-code 266 bhp (198 kW; 270 PS) @ 5,400 301 lb⋅ft (408 N⋅m) @ 3,600
351 cu in (5.8 L) Cleveland HO V8, 4-barrel Autolite 4300D, R-code 275 bhp (205 kW; 279 PS) @ 6,000 286 lb⋅ft (388 N⋅m) @ 3,800
1973 250 cu in (4.1 L) Thriftpower I6, 1-barrel Carter RBS, L-code 98 bhp (73 kW; 99 PS) @ 3,400 197 lb⋅ft (267 N⋅m) @ 1,600
302 cu in (4.9 L) small block V8, 2-barrel Autolite 2100, F-code 140 bhp (104 kW; 142 PS) @ 4,000 239 lb⋅ft (324 N⋅m) @ 2,000
351 cu in (5.8 L) Cleveland V8, 2-barrel Autolite 2100, H-code 177 bhp (132 kW; 179 PS) @ 4,000 284 lb⋅ft (385 N⋅m) @ 2,000
351 cu in (5.8 L) Cleveland CJ V8, 4-barrel Autolite 4300D, Q-code 266 bhp (198 kW; 270 PS) @ 5,400 301 lb⋅ft (408 N⋅m) @ 3,600
[96][97][98][99][100][101]

Production

In 1964, Mustang sales started with 22,000 orders taken on the first day at the World's Fair and around the country.[102] In the first two years of production, three Ford Motor Company plants in Milpitas, California; Dearborn, Michigan; and Metuchen, New Jersey produced almost 1.3 million Mustangs.[103]

1964-1973 graph.png

From 1965, the Mustang was also made at the La Villa plant in Mexico. Initially, only the hardtop with a V8 engine (initially the 289, the 351 was added in 1970). The Mach 1 fastback was added in 1973.[citation needed].

Industry reaction

Even though Chrysler had introduced the Plymouth Barracuda a few weeks before the "clean sheet" Mustang, it rapidly overcame the slightly redesigned Plymouth Valiant[104] to not only dominate the emerging car sector—the pony car—but define it.[105] It left the Barracuda in its tracks,[106] and caught GM flat-footed. Unprepared General Motors executives thought the rear-engined Chevrolet Corvair Monza would compete against the Mustang, but it also sold poorly by comparison.[107] The Monza performed well for a sporty car, even as a sports car, but lacked a V8 engine and its reputation was tarnished by Ralph Nader in his book, Unsafe at Any Speed.[108] It took GM until the 1967 model year to counter with the Chevrolet Camaro and Pontiac Firebird. Lincoln-Mercury joined the competition in 1966 with the Mercury Cougar, an "upmarket Mustang" and subsequent Motor Trend Car of the Year.[109] In mid-year 1967, American Motors (AMC) introduced the Javelin, an image-changing "standout,"[110] for the 1968 model year.[111] For the 1970 model year the Dodge Challenger, a version of the Plymouth Barracuda platform, was last to join the pony car race.[112]

See also

References

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