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Most muscle cars of 1967 made you pay extra for the engine that mattered, the Plymouth GTX just built it in standard, wrapping a 440 Super Commando inside comfort-focused styling borrowed from the upscale Satellite. Buyers chasing even more performance could step up to the fabled 426 Hemi, but most stuck with the 440 for good reason. Here is why Plymouth’s gentleman’s muscle car approach to the GTX still holds up as one of the smarter muscle car formulas of its era.
Plymouth needed an answer to the Pontiac GTO, and in 1967 they built one by dropping a standard 440-cubic-inch, 375-horsepower Super Commando V8 into a dressed-up Belvedere and calling it the GTX. Unlike most muscle cars of the era, buyers didn’t have to option their way up to big power – Plymouth handed it to them standard, with the fabled 426 Hemi waiting as an upgrade.
For 1970 Plymouth severed the Barracuda’s last ties to the Valiant, dropped it onto the new E-body platform alongside the Challenger, and built an engine bay big enough for a 426 Hemi. Two model years later, insurance surcharges and emissions rules had already begun taking it apart. Here is what changed between 1970 and 1971, and which one-year-only details separate the two.
A 1970 Plymouth Superbird spent nineteen years sitting before anyone put real miles on it, and it still shows just 674 on the odometer today. The factory B5 blue paint has never been touched by a repaint gun, and the numbers-matching 440 Super Commando under the hood still traces back to the original build sheet. Only 1,920 Superbirds were built for NASCAR homologation, and this one may be among the best-preserved survivors left. Is a car this original meant to be driven, or protected?