1971 Dodge Dart: The Compact Everyone Underestimated

This bright yellow 1971 Dodge Dart could be anything from a budget-minded Swinger to a genuine Demon 340 sleeper – Dodge built both on nearly identical sheet metal that year. Only 10,098 Demon 340s left the factory with their 275-horsepower small-block, making a real one a rare find among the 100,000-plus Swingers Dodge sold. Find out what made the Dart one of Mopar’s most underrated performance bargains.

That bright yellow driveway find isn’t just any compact — it’s a 1971 Dodge Dart, and depending on which badge it’s wearing, it could be anything from a budget-minded commuter to one of the meanest small-block sleepers Mopar ever built. Dodge sold the Dart in wildly different flavors that year: the entry-level Swinger racked up more than 100,000 sales on its own, while a rare few buyers walked past all of that and ordered the Demon 340 instead. That car packed a genuinely potent 340 cubic-inch V8 under a hood that looked nearly identical to every other Dart in the parking lot — the definition of a factory sleeper. So is this particular Dart hiding something under the hood, or is it exactly what it looks like?

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The Swinger Everyone Actually Bought

For 1971, Dodge renamed the Custom two-door hardtop Dart the Swinger and aimed it squarely at compacts like the Chevy Nova — a $2,560 base price with the six-cylinder, just $50 more to step up to a V8. It worked: the Swinger alone accounted for more than 100,000 sales that year, more than any other single Dart variant, and its 318 V8 option delivered a comfortable 155 horsepower and 320 lb-ft of torque, plenty for a car built to be practical first.

The Demon Hiding In Plain Sight

The real story for enthusiasts is the Demon 340 — Dodge’s answer for buyers who wanted a genuine small-block screamer without the price tag of a big-block Charger. Only 10,098 Demon 340s were built in 1971, dwarfed by 69,861 base Demons and that same 102,480-strong Swinger count, which makes a real 340-code car a genuinely rare find today. That 340 wasn’t a mild engine either — 275 horsepower and 340 lb-ft from a shot-peened forged crank, 10.5:1 pistons, high-flow heads, and a single Carter four-barrel, good enough for Car Craft to run a bone-stock 14.41 at 98.69 mph in period testing.

One Sleeper, Many Possible Identities

Whether this particular Dart is a garden-variety Swinger or something hiding a numbers-matching 340 under the hood, it’s a snapshot of just how far Dodge stretched one compact platform in 1971 — from grocery-getter to genuine street performer, all wearing nearly identical sheet metal.

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