Dodge A-Body buyer's guide

Overview

Dodge's A-body line — Dart, Demon, Swinger and their kin (1967–76 in this span, with the Dart name reaching back to 1960 on larger cars) — was Chrysler's compact family on the Dodge side, the mirror of Plymouth's Valiant/Duster range (which has its own guide). The A-body Dart of 1967–76 is the relevant classic: a light unibody compact that hosted everything from the slant six to, briefly and officially, the 440 big-block (the 1969 Dart GTS and the Mr. Norm's Grand-Spaulding programme that preceded the factory effort) — one of the most outrageous power-to-weight propositions of the muscle era. The Swinger 340 (1969–70) and the Demon 340 (1971–72, renamed Dart Sport) are the mainstream performance cars: light, quick and still sensibly priced.

Generations and year breaks

1967–1969 — the compact Dart finds its edge

• The 1967 redesign set the A-body Dart's form (sedan, hardtop, convertible to 1969); the GTS package (1968–69) put the 340 — and for 1969 the 383 and the 440 — into the hardtop and convertible.
• The Mr. Norm's 1968 440 Dart (the dealer-built car that proved the combination) is the legend's origin; factory M-code 440 GTS cars followed for 1969 and are documented rarities.
• The Swinger (1969) joined as the budget hardtop, with the 340 as its performance version.

1970–1972 — Swinger 340 and the Demon

• The Swinger 340 became the value performance Dart; the Demon (1971–72) was Dodge's Duster — the fastback coupe, with the 340 as its performance engine.
• The name change (Demon → Dart Sport for 1973, after religious-group objections) is the era's trivia; the cars are the same.

1973–1976 — the softened close

• Bigger bumpers, the 360 replacing the 340 (1974), Dart Sport and Swinger carrying the line to the Volaré/Aspen succession of 1976.
• The Dart Lite (1976) with its aluminium panels mirrors Plymouth's Feather Duster as the economy special.

Engines and options that matter

• Slant six (170/198/225) — the default; durability is its legend.
• 318 — the common V8 driver specification.
• 340 (1968–73) — the A-body's performance heart: the Swinger/GTS/Demon combination is light-car speed at its best. Verify the engine by its stampings.
• 383 and 440 (GTS, 1968–69) — the big-block Darts are tight-engine-bay specials (the factory 440 cars are M-code, documented, and priced like the rarities they are). Handling suffers; the legend does not care.
• The 360 (1974–76) is the cheap torque of the last cars.

What to check before buying

• Rust, A-body pattern: torsion-bar crossmember mounts, front stub frames, floors, trunk, quarters and the fastback's rear-window channel — identical in kind to the Plymouth A-body checklist.
• Big-block claims: an M-code 440 car is proven by the VIN's engine letter and the fender tag; a 440 fitted to a small-block car is a hot rod, priced as one. The 383 GTS cars are H-code territory — decode before paying.
• Engine identity: as always with A-bodies, swaps are the norm; the block's stamped partial VIN is the ground truth.
• Convertibles (1967–69): the Dart ragtop's structure (floors, torque boxes) and its one-body trim are the checks.
• Running gear: manual steering on big-block cars is heavy at parking speeds; drum brakes on performance cars are a budget item, not a detail.
• Parts: the A-body world is well served mechanically; Demon/Dart Sport fastback glass and trim, GTS-specific pieces and convertible parts are the hunts.