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1966 Plymouth Valiant Signet
Plymouth Valiant Signet
1963-1966 (Second Generation) · Sedan
Rarity Score
6/10 - Uncommon. While mass-produced, many were scrapped due to their 'economy car' status, making surviving two-door Signet models hard to find.
Spot Difficulty
8/10. Extremely rare to see on the road today; usually only found in junkyards, specialized Mopar shows, or private collections under restoration.
Engine & Performance
Engine: Likely 225 cubic inch (3.7L) Slant-6 or 273 cubic inch (4.5L) V8; Horsepower ranging from 145 hp to 235 hp depending on configuration.
Transmission & Drivetrain: 3-speed automatic (TorqueFlite) or 3/4-speed manual; Rear-Wheel Drive (RWD).
Performance: 0-60 mph in approx 10-14 seconds; Top speed approx 95-105 mph; Curb weight around 2,800 lbs.
Exterior
Faded red paint with significant patina, oxidation, and surface rust. Two-door pillared sedan body style. Chrome front bumper remains but grille and headlights are missing. Distinctive 'PLYMOUTH' block lettering on the leading edge of the hood.
Interior Features
Signet trim traditionally featured vinyl bucket seats and upgraded door panels. Currently appears heavily weathered, missing dashboard components, and showing significant deterioration from sun exposure.
Condition Assessment
Poor - Salvage/Parts Car. Significant body rot, missing major front-end components, and evidence of long-term outdoor storage in a scrapyard environment.
Condition Issues: Missing grille, headlights, and trim; heavy paint oxidation; surface and structural rust; dry-rotted tires; likely seized mechanicals; interior rot.
Estimated Mileage: Unknown / Likely over 100,000 miles based on age and wear.
Historical Significance
The Valiant was Chrysler's highly successful entry into the compact car market, known for its incredible durability, specifically the nearly bulletproof Slant-6 engine.
Notable Features
Signet trim was the top-tier luxury level for the Valiant. Features side chrome strips and internal upgrades that were premium for a 60s compact.
Production Numbers
Approximately 13,000 Signet 2-door sedans were produced in 1966 out of roughly 138,000 total Valiants.
Valuation
Estimated Market Value: $500 - $1,500 (As a parts car or heavy restoration project).
Auction Estimate: $300 - $1,200 (Scrap or parts value).
Maintenance Recommendations
Full frame-off restoration required. Priority would be sourcing rare 1966-specific front-end trim and evaluating the unibody for structural integrity.
Fun Facts
The Valiant platform was the basis for the first Plymouth Barracuda; the 225 Slant-6 engine was so reliable it was nicknamed 'the leaning tower of power'; 1966 was the final year for this body style before a total redesign.
Identified on: 6/12/2026
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