Wednesday 20 January 2016
This is fourth generation of Dodge Dart.
The 170 cu in (2.8 L) Slant-6 engine remained standard equipment, though its power rating rose from 101 bhp (75 kW) to 115 bhp (86 kW) for 1967, owing to the installation of the 225 engine's larger 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 198 cu in (3.2 L) 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 (3.64 in (92 mm) stroke vs. the 4.125 in (104.8 mm) stroke of the 225 crank) and connecting rods (7.006 in (178.0 mm) long vs. the 6.67 in (169 mm) rods in the 225). Nevertheless, the 225 remained an upgrade option. The 2-barrel 273 cu in (4.5 L) small-block V8 was supplanted on the option list in 1968 by a 318 cu in (5.2 L) 2-barrel engine. The 318 was rated at 230 bhp (170 kW) versus the 2-barrel carbureted 273's 180 bhp (130 kW). At the same time the 4-barrel carbureted 273 235 bhp (175 kW) was replaced on the options list by the 275 bhp (205 kW) 4-barrel carbureted 340 cu in (5.6 L) available only in the 1968–1972 Swinger and the hottest Dart, the performance-oriented GTS models. The Dart GTS came standard with the 340 cu in (5.6 L) V8. A 300 hp (220 kW) 383 cu in (6.3 L) big-block was optional.
The 1973 model year Darts received new front styling with revised fenders, grille, header panel, and hood. Massive 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 4 in (101.6 mm) to the 4.5 in (114.3 mm) 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" unit, but the heavy-duty option was now an 8¼" item rather than the previous 8¾" 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 Christian groups' complaints about the 'Demon' name and devil-with-pitchfork logo. The high-performance model thus became Dart Sport 340, and 1973 saw styling changes to go along with the name change. The Dart Sport received the same new front end as the other Darts, and its taillights were changed to two lights per side, each with a chrome trim ring. These would remain unchanged through the 1976 model year.
- engine: V8
- capacity: 4800 cc
- horsepower: 160 HP
- gearbox: 4+1
- top speed: 170 km/h