The Muscle Car Channel contains articles and pictures on the big-engine hot rods of each decade. Explore the HowStuffWorks Muscle Car Channel.
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Plymouth addressed the need for a unified performance image in 1967 with an executive-class hot rod that leaned a little on the Poncho for its name: the Plymouth Belvedere GTX. Learn about this muscle car.

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1970 Buick GSX

Buick, in the last great year for muscle cars, built one of the fastest ever. Learn about the massive 455-cubic-inch engine and see the performance numbers for the 1970 Buick GSX.

1971 Plymouth GTX 440+6

Plymouth was still holding out against the changing tide of muscle cars in 1971, and the GTX benefited as a result. Check out photos and specifications of the 1971 Plymouth GTX 440+6.

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