Engines The Slant-6 engine remained standard equipment, though its power rating rose from to for 1967, owing to the installation of the 225 engine's 1 barrel Carter BBD or Holley 1904 series carburetor and the revised camshaft the bigger engine had received in 1965. For North American domestic-market vehicles, the base 170 engine was replaced for 1970 with a stronger new version of the slant-6. This new base engine was also less costly to make, for unlike the previous 170 engine, the 198 used the same block as the 225. The smaller displacement was achieved with a new crankshaft ( stroke vs. the stroke of the 225 crank) and connecting rods ( long vs. the rods in the 225). Nevertheless, the 225 remained an upgrade option. The 2-barrel small-block V8 was supplanted on the option list in 1968 by a 2-barrel engine. The 318 was rated at versus the 2-barrel carbureted 273's . At the same time the 4-barrel carbureted 273 was replaced on the options list by the 4-barrel carbureted available only in the 1968–1972 Swinger and the hottest Dart, the performance-oriented GTS models. The Dart GTS came standard with the V8. A big-block was optional.
1967 The Dart and its sister model—the Plymouth Valiant—were substantially redesigned for the 1967 model year. In addition to new styling, the cars received revised steering systems, wider front track and frame rail spacing, and redesigned
K-members capable of accepting larger engines. The Dart kept this basic form, with
facelifts consisting of revised front and rear-end styling and interior trim, until the end of A-body production in 1976 for North America and 1981 for South America. The restyled Dart for 1967 featured a rear window with compound inverse curves. This created a unique appearance at the rear of the
greenhouse, but tended to collect snow and created thick
C-pillars that looked formal but created blind spots for drivers. Curved side glass was used for the first time on a Chrysler compact. The front featured a new dual-plane front end contour: the center section of the grille, bumper, and leading edge of the hood were recessed from the front plane of the car. The single headlamps were placed forward of the recessed center section, defining the front plane. Park/turn lamps were set into the grille, in the corners formed by the transition area between the recessed and forward sections. With the new design, changes were made to the Dart lineup, beginning with the elimination of its station wagons and the base model's "170" designation. The only body styles were the 2- and 4-door sedans, the hardtop, and the convertible. The base 170 model was now badged simply as "Dart". The 270 and GT versions carried on unchanged for the most part. In late 1967, the GTS model debuted but was built in limited quantities due to its lateness in the model year; the 1968 GTS was, arguably, improved by fitting the new high-output
V8 as standard equipment. Other changes to comply with new federal safety laws included collapsible steering columns, additional padding on the dashboard and sun visors. Shoulder belt anchors were also provided for front outboard occupants. The 1967 redesign removed all traces of the older Virgil Exner styling that proved less popular by the early 1960s. The newer body was trimmer and proved extremely popular, causing sales of the Dart to surpass compacts from Ford and GM.
1968 Changes for 1968 were relatively subtle. The park and turn lights in the
grille were moved slightly inboard and made round.
Side marker lights were added to the front fenders and rear
quarter panels, to comply with newly introduced
Federal Motor Vehicle Safety Standard 108. Shoulder harnesses (separate, this year and until 1973, from the lap belts) and non-glare
matte finish on the
windshield wiper arms were also part of the 1968 federally mandated safety package. Chrysler's "clean air package"
emission control system became standard equipment on cars sold in all 50 states. The steering linkage was revised again, as were the windshield and rear window gaskets and trim-lock strips, leaving the 1967 pieces as one-year-only items. The standard
rear axle ratio was dropped from 2.93 to 2.76 with all standard-performance engines and
automatic transmission. Part-throttle downshift functionality was added as a refinement to the
TorqueFlite automatic transmission in 6-cylinder cars, to retain acceptable city performance with the taller rear axle ratio. the Hurst-reworked Hemi Darts used the
Hemi engine. These special models (only 80 were made) were created strictly for
drag racing, and included a non-warranty disclaimer. On February 20, 1968, corporate headquarters in
Highland Park, Michigan, sent out a press release to Dodge
dealerships. It was a promotional pitch purposed at selling drag-ready, Hemi-powered Darts. The press release stated that Dodge wanted to make a factory-built and ready drag racer out of the 68 Dart GTS
hardtop for competition in class B
Super Stock (drag racing). Engineers stated the new Hemi Dart reached speeds of in less than 11 seconds and Dragstrip| times in the 10-11 second range, although times have been reported as low as the 9-10 second range. To keep weight low, a
fiberglass hood and fenders were used. The hood featured a functional intake scoop and four hood pins for full lift-off removal of the hood. Lightweight acid-dipped steel doors with thin side window glass were used. As the doors lacked a window mechanism, a strap was attached to the bottom of the glass on the interior door panel. To keep glass up, the strap latched to the inside of the door. The interior included only two
bucket seats from a Dodge van.
The center console, heater, sound deadeners, side-view mirrors,
radio,
carpeting, and even
armrests were omitted to save weight. The engine was a race-spec 426 Hemi. These motors had a
compression ratio of 10.25:1
pistons,
bore x
stroke fed through a 2X4-barrel
Holley carburetors atop a lightweight crossram aluminum
intake manifold rated at at 5,000 rpm and a maximum torque of at 4,000 rpm. A high-performance
Mopar battery was moved to the
trunk to free up room and improve
weight distribution. Darts could be ordered with either a four-speed manual or three-speed automatic transmissions.
Manual transmission equipped cars, code
A-833, featured a
Dana 60 built heavy-duty axle with a 4.88
gear ratio, heavy-duty
clutch, steel bellhousing, and special torque
shaft and pivots. Manual transmissions were modified by removing
synchronizers which lowered the chances of missed
shifts. A
Hurst floor-mounted
shifter came standard. The automatic transmissions were the then-new Chrysler-built
727 TorqueFlite three-speed with 8-3/4 inch large stem pinion center section with a 4.86 gear set, and a 2,600 rpm high speed
torque converter. They were also modified with a floor-mounted Hurst shifter for manual shifting. Other features include heavy-duty rear
shocks, heavy-duty
radiator with a seven-blade fan, and deep
groove pulleys, a high capacity
oil pump, solid-
lifter cam, and a roller timing chain to reduce stretch and provide more reliable performance. A transistorized dual points breaker distributor coupled with a
Prestolite ignition and solid core wires were also used. The cars weighed approximately . The cars were designed to meet
street legal requirements, but due to the modifications, the cars came with disclaimers that they were not for street use, but rather "supervised acceleration trials", or drag racing.
1969 The 2-door sedan was dropped at the end of 1968 and replaced with the Swinger 2-door hardtop for 1969 available in Custom, GT, and GTS trim. Also added was the Swinger 340. The entire 1969 Dart range received trim updates including another minor revision of the grille and a return to rectangular park/turn lights. The 1968 round side marker lights were replaced with rectangular reflectors. Head restraints were optional equipment until January 1, 1969, when their installation became mandatory under federal law. The 6-cylinder models received a carburetor anti-ice system borrowed from Canadian-market Chrysler 6-cylinder engines, and the drum brake automatic adjusters were revised for more consistent operation. At the top of the Dart performance range for 1969, there was limited availability of the
440 V8 in the Dart GTS model.
1970 The Dart was refreshed for 1970 with front and rear changes designed to bring the car closer to the design themes found in Dodge's full-size vehicles through grille and contour changes. In the rear, the Dart's new rectangular tail lights were set into a wedge-shaped rear bumper design continuing the angled trailing edge of the new deck lid and quarter panels. The revised rear styling did not change the 14.1 cubic ft trunk space of the 1969 model. 14-inch wheels became standard equipment, and the slant-6 was replaced by a larger version for improved base-model performance and greater manufacturing economy—the 198 used the same block as the 225, while the 170 had used a different block. Changes to the fuel system improved drivability, economy, and emission control. Part-throttle downshift was added to the 8-cylinder automatic transmissions. In compliance with
FMVSS 108, side marker lights and reflectors were installed at all four corners. 1970 Darts for the US and Canadian markets were built in Canada at the Windsor, Ontario, or Los Angeles, California assembly plant. All 1970 Darts got the federally mandated steering column and ignition lock. The "Swinger" name was applied to all the Dart two-door hardtops except in the high-line custom series. Other changes were made to the Dart line to avoid internal competition with Dodge's new
Challenger: the Dart convertible was discontinued along with the optional V8, leaving the 340 4-barrel V8 as the top Dart engine. heavy-duty "Rallye" suspension, a 3.23:1 rear axle ratio, fiberglass-belted bias-ply tires mounted to 14 × 5½ inch steel wheels, and a bumblebee stripe. Optional equipment included an upgrade over the standard bench seat with all-vinyl bucket seats, with which a center console could be ordered. A performance hood upgrade with scoops was painted flat black with hood tie-down pins. Mechanical options included power-assisted brakes and steering. Rallye wheels and wire wheel covers were also optional, as was a 6000 rpm tachometer and a vinyl roof covering in black or white.
1971 For 1971, Chrysler introduced a 2-door hardtop in the Valiant line called the Scamp. It was the same car as the Swinger with a Valiant front clip. The 1970 Dart's dual tail lamps were given over to the
badge-engineered Scamp, while the 1971 Dart received new smaller quad taillamps that would be used through 1973. The custom 2-door hardtop coupe became the Swinger, and the standard Swinger became the Swinger Special. Dodge gained a version of Plymouth's popular Valiant-based fastback
Duster which was to be named the
Beaver, but when Chrysler's marketing department learned that "beaver" was
CB slang for
vagina,
1972 Changes for 1972 included a revised grille without the central divider of the 1970 and 1971 items, new surface-mounted
sidemarker lights rather than the previous flush-mount units, the instrument cluster was now shared with the Valiant and featured a large, rectangular speedometer and several, small, round gauges; the AM/FM-radio option returned. The Demon had new fender-mounted metal "Demon" badges without the small devil character on the 1971 decals. The "Demon" decal on the rear of the car was replaced by
Dodge and
Dart emblems on the lower right edge of the deck lid. Some Demons with the side and rear panel tape stripes retained the tape devil character. A new, optional, single, hood scoop replaced 1971's dual scoops, and was coupled with a hood-paint blackout that had been standard on the 1971 high-trim/high-value Demon Sizzler model. Cars equipped with the optional rally wheels now came with newly restyled center caps, finished in a light-argent (silver) paint. Demon production was substantially less than the Duster's; this is reflected in higher collector car values for the Demon, especially V8 models.
1973 The 1973 model year Darts received new front styling with revised fenders, grille, header panel, and hood. Impact absorbing front bumpers were installed to comply with new federal regulations, as well as side-impact guard beams in the doors and new emission control devices. New single-piston disc brakes replaced the more complex 4-piston units offered from 1965 to 1972. Chrysler's new electronic ignition system was standard equipment on all engines, and starter motors were revised for faster engine cranking. The K-frame was modified to accommodate a new spool-type engine mount that limited engine roll to 3°. The upper ball joints were upgraded to the larger B-body units. Along with these chassis changes, the wheel bolt pattern on Darts with disc brakes was enlarged from to the pattern common to the larger B- and
C-body Chrysler-built passenger cars. Darts with 4-wheel drum brakes continued with the smaller bolt pattern. The standard rear axle was still the 7¼-inch unit, but the heavy-duty option was now an 8¼-inch item rather than the previous 8¾-inch rear axle. Standard rear axle ratios were 2.76:1 with automatic transmission and 3.23:1 with manual, though other ratios were available. Vent wings were deleted from the Swinger but not from the 4-door sedans. A new "Quiet Car" package was available, consisting of extra sound insulation, premium exhaust hangers, and an exhaust resonator. The Demon fastback was renamed "Dart Sport" in response to poor sales. It was thought that the "Demon" name and devil-with-pitchfork logo negatively affected sales to people of faith. Heavy gauge steel in the windshield pillar area had been incorporated into the windshield, pillar, and roof design. Darts were also equipped with an improved energy-absorbing steering column which used multiple slots in the column jacket to replace prior used convoluted mesh design. At impact, force applied to the steering wheel curled the column jacket back over a
mandrel mounted on the floor. Federal Motor Safety Standards briefly required that the front seat belts include a starter interlock system that prevented the engine from starting unless the front seat outboard occupant and the driver fastened their belts. It was Chrysler's first application of overdrive since 1959. The final drive ratio in fourth gear was 2.36:1 on the slant-six cars equipped with 3.23:1 rear axle, and 2.15:1 on the V8s equipped with 2.94:1 rear axle. The result was less engine noise and wear and greater fuel economy.
Car & Driver magazine tested the Dart Sport 360 in the April 1976 issue, pitting it against the Chevrolet Corvette and Pontiac Trans Am, and found its top speed of to be second to the Corvette's . Dart Custom 4-Door Sedan was dropped as the mid-level 4-door sedan model, but the features and trim were carried over as option package A68. Sedans equipped with the Custom package received the same "Custom" front fender badges as were applied to the standalone 1975 models of the same name. Elimination of the Custom series narrowed Dart's 4-Door Sedan offerings in Dart's final year to two models, Dart and Dart Special Edition.
A38 Police Package In 1976, the Dart was offered with a police package, with production code A38. The A38 Dart had high-specification components and systems throughout, including a heavy-duty suspension with a rear sway bar, stronger leaf springs and firmer shock absorbers, larger brakes with semi-metallic front disc pads, maximum engine cooling as well as a high-capacity alternator and battery. The engines were Chrysler's 225 slant-six, 318 V8, and
LA V8 (220 H.P., with non-catalyst in 49-state models and a true dual exhaust; California models had a single exhaust with the catalytic converter) with an A727
TorqueFlite transmission. Police-specific equipment such as a calibrated speedometer ("certified" 120 mph), high-intensity dome light and wiring harness for a rooftop light bar were standard equipment with an A-pillar spotlight and push bars were optional. Production volume was low, with most A38 Darts going to the
Los Angeles and
Ventura police departments in
Southern California. For the most part, police agencies preferred the larger intermediate
Dodge Coronet or full-size
Dodge Monaco.
A37 Taxi Package A Taxi Package was also offered in Dart's final year of production. Standard equipment included roof-light wiring, structural reinforcements in the body frame members, heavy-duty shocks and alternator and maximum capacity radiator. Engine options were the 225 slant-six or 318 V8. The Taxi package also included numerous interior upgrades including high-grade black vinyl, heavy duty floor mats, and heavy duty springs in front and rear seat cushions and seat backs. At extra cost, fleet buyers could specify a broader range of colors than those offered to retail buyers from the Production and Fleet Paint Selector, including Taxi Yellow, color code Y7.
Dart Sport packages Convertriple and Hang 10 For 1973 and 1974, the
Convertriple option on the Dart Sport included a fold-down rear seat/security panel offering of lengthwise space, and a manually operated metal
sunroof. It was advertised as "three cars in one": an economy compact, a convertible alternative because of the sunroof, and a roomy station wagon alternative because of the fold down rear seat. The Convertriple was the basis for the 1975
Hang 10 option. It was aimed at
surfers in an attempt by Dodge marketers to better determine consumer preferences in a declining performance market.
Hang ten is a surfing expression for balancing at the end of a surfboard with ten toes over the nose of the board while riding the wave. Available only in eggshell white exterior with a factory-installed sunroof, the car's fold-down rear seat permitted the loading of a surfboard through the trunk. The Hang 10 option continued the surfing theme with various colored stripe material accenting the white vinyl seats and door panels. Orange
shag carpet covered the back of the fold-down rear seat while the dash and center console had orange accents.
Caravan Tan In mid-1974, Dodge introduced the
Caravan Tan trim package. Features for this Dart Sport included a desert-hued vinyl bench seat with multi-colored striped inserts and white piping, and gold-colored instrument panel, dashboard, and carpeting. Exterior color choices were dark moonstone, Sienna, gold metallic, dark gold metallic, golden fawn, and white.
Spirit of '76 In a tie-in with the
United States Bicentennial, a '''Spirit of '76''' edition of the Dart Sport featured white paint with prominent red and blue bodyside striping meant to evoke the image of the American flag.
Dart Lite In response to increased interest in fuel economy, Dodge offered the
Dart Lite fuel economy package which weighed at least less than the ordinary Dart Sport. The 225 slant-six was the only available engine, equipped with an aluminum intake manifold for the first time since 1960 and a specially calibrated
carburetor and distributor. Bumper reinforcement brackets were aluminum instead of steel, while the hood and trunk lid bracing and inner panels were also aluminum. The slant-six engine block had already been modified for reduced weight in 1975; in the middle of 1976 production, its crankshaft was changed from forged steel to lighter cast iron. The high-flow exhaust system included a dual-biscuit
catalytic converter, a larger 2¼" headpipe, and the muffler used on V8 models. The Dart Lite was equipped with a 2.94:1 rear axle rather than the customary 3.21:1 ratio when the car was ordered with a three- or four-speed manual transmission. The A833OD Overdrive 4-speed manual transmission housing was made of aluminum and had a .73:1 final drive ratio which allowed cruising at highway speeds with minimum engine revolutions. Like all other Darts, the Dart Lites with automatic transmission came with a 2.76:1 rear axle as standard equipment. The Dart Lite with manual transmission was rated by the
EPA at 36 mpg (6.5 L/100km) in highway driving. The Plymouth version was the
Feather Duster. == Taxi ==