1970 Plymouth Duster 340

These days you usually can't add options to an automaker's cheapest model to create a performance car. But in 1970 Plymouth's new Duster, built on the "compact" Valiant chassis could be ordered with a 340 c.i. V-8 and still cost only $2,500.

thetruthaboutcars.com says,"Speaking of muscle, the 340 had more than plenty. Advertised at an insurance-friendly 275 horsepower, the informed-user consensus had it pegged at more like 325+."

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