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1970 Plymouth Duster

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General Overview

The Plymouth Duster introduced in 1970 was all Valiant from the cowl forward, but the rest of the car's sheet metal, save door skins, was completely different.

The design incorporated a semi-fastback roof and a special rear valance with twin horizontal taillights, unusual for having no bezels. The door glass was operated by a totally new regulator mechanism, required to fit the much more radical tumblehome (reduced side glass radius), and the windshield was more steeply raked.

For 1970 only, a small Valiant badge went on the front fenders just above the Duster badge.

The 1970 Duster was available in two models — the standard Duster and a performance-oriented Duster 340. Engine options were 198 cu in and 225 cu in versions of Chrysler’s Slant 6, as well as the 318 cu in and 340 cu in V8’s.

In midyear, a Gold Duster trim package was added. The Gold Duster package came with either the 225 Slant Six or the 318 V8. It also came with special “Gold Duster” emblems, gold stripes on the sides and rear, wall-to-wall carpeting, pleated, all-vinyl seats, whitewalls, wheel covers, a deluxe insulation package, and a vinyl roof. The Gold Duster was offered through 1975.

Total sales in 1970 came to 217,192, of which 24,817 were equipped with the 340 engine.

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Manufacturer Original Sales Brochures

Performance

Engine 0 to 60 MPH Quarter Mile Source
340ci/275 hp 6.2 sec 14.7 sec @ 94 mph n/a

Drivetrain

Available Engines:
Slant 6 198ci 1x1bbl 125hp @ 4400 180 lb-ft @ 2000
Slant 6 225ci 1x1bbl 145 hp @ 4000 215 lb-ft @ 2400
LA V8 318ci 1x2bbl 230 hp @ 4400 320 lb-ft @ 2000
LA V8 340ci 1x4bbl 275 hp @ 5000 340 lb-ft @ 3200
Available Transmissions:
  • 3-speed manual
  • 4-speed manual
  • 3-speed TorqueFlite auto

Factory Exterior Colors

  • Platinum
  • Ice Blue
  • Blue Fire
  • Jamaica Blue
  • In-Violet
  • Rally Red
  • Lime Green
  • Ivy Green
  • Limelight
  • Vitamin "C"
  • Burnt Orange
  • Deep Burnt Orange
  • Sand Pebble Beige
  • Frosted Teal
  • Scorch Red
  • Sahara Tan
  • Burnt Tan
  • Walnut
  • Tor-Red
  • Alpine White
  • Lemon Twist
  • Sun Fire Yellow
  • Yellow Gold
  • Citron Mist
  • Citron Gold
  • Black Velvet

Factory Interior Colors

  • Med. Gold
  • Dk. Green
  • Med. Dk. Blue
  • Med. Burnt Orange
  • Med. Tan
  • Brite Blue
  • Red
  • Black

Production Numbers

  • Duster
    Total productions 192,375
  • Duster 340
    Total productions 21,799

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