The GTX was Plymouth’s top-of-the-line muscle car in 1970. Think of it as an upscale alternative to the bare-bones Road Runner. The GTX added creature comforts without sacrificing performance.
Both models used the same muscular engine lineup of V-8 engines. The unrestored 1970 GTX survivor currently available on eBay is equipped with the Chrysler 440 Six Pack.
This numbers-matching 1970 GTX is truly a special car. It features mechanical and cosmetic upgrades for increased drivability and performance. At the same time, the ’70 GTX maintains as much of the original, unrestored appearance as possible.
The exterior remains largely as it left the factory, with original sheet metal and paint modified only by a half-century of patina. If cars could tell stories, this piece of automotive history would have plenty to say.
The Legendary Six Pack Engine
Adding to the car’s appeal is the rare Six Pack engine. (Six Barrel is the term in Plymouth literature.) The name comes from the three two-barrel carburetors and special intake manifold sitting atop said versions of the mighty 440. More than just a carb and manifold upgrade, Six Pack engines also got more robust connecting rods, valves, and camshaft. These modifications are good for 390 horsepower and buckets of torque.
A manually operated hood scoop labeled Air Grabber was part of the package. It rises from the hood on demand. The sides are adorned with none-too-subtle shark’s tooth graphics.
With similar horsepower and torque to the legendary 426 Hemi, the Six Pack was marketed as a more affordable and less temperamental alternative for street driving. Around town, the engine was designed for civilized operation, using only the center two-barrel carburetor. But when given adequate throttle, the other two carbs join in. Thats when things got raucous. The Six Pack became one of the top-performing weekend drag racing cars of its era.
The 440 cubic-inch V-8 in this example was rebuilt for increased performance and reliability while maintaining the original look. Modifications include upgraded heads, pistons, and camshaft. In addition, there are new carbs, an aluminum radiator, and a modern electronic ignition system. A previous owner rebuilt the three-speed Torqueflite automatic transmission.
Ready to Run, Or For Full Restoration
Meanwhile, the GTX’s interior was treated to new components, including seat upholstery from Legendary Auto Interiors. New carpeting, headliner, and a rear package tray was part of the upgrade.
The builders also installed new door and window seals, although the original door panels are still there. Therefore, the car has much of its original flair.
This GTX runs and drives well as is, according to the seller. A capable builder could easily make it like new again thanks to parts readily available on eBay.
Shop now for the classic Plymouth GTX partsAside from some rusted panels, the car appears structurally sound and ready to drive. What happens next is up to the new owner.
