1970 GTX 1970 GTX Hot

1970 GTX
“Not brag. Just fact.” 1970 Plymouth sales brochure
  • A new 3x2-barrel 440 CID V8 that had been introduced in the middle of the 1969 model year was back as an available option.
  • Standard with the Hemi engine option was a new Air Grabber hood.
  • 15-inch tires became available as an option for the first time.

Muscle Car Specifications

Performance Model
1970 Plymouth GTX 440
Engine Used
440ci/370hp
Zero to Sixty
6.5 sec
Quarter Mile
14.9 sec @ 95.4 mph

Muscle Car Comparisons

Muscle Car By Year
Muscle Cars By Make

When Plymouth introduced the GTX in 1967, it was marketed as the “gentleman’s” sports car. It was based on the Belvedere and designed to be the top of that line in terms of both performance and luxury. By 1970, with sales dropping, the GTX seemed to be focused more on performance than ever before.

This is likely due in large part to the success of the Road Runner, another Plymouth car based on the Belvedere, though that car didn’t have as much standard power as the GTX, and its luxury options were minimal, if not non-existent. But it was the Road Runner’s lower price that made the car a hit, and the GTX seemed to respond by presenting itself as the true muscle car that it was to compete with the other muscle cars on the road at the time.

The standard engine was the 4-barrel 440 CID Super Commando V8 that produced 375 horsepower. This was in contrast to the base Road Runner, which was rated at 290 horsepower. The 3x2-barrel edition of the 440 raised that horsepower to 390 and could chose the Air Grabber hood as an option. And then at the top of the performance heap was the 426 CID Hemi V8, which was rated at 425 horsepower. The standard Air Grabber hood had a single flap that could raised and lowered from inside the car.

Though the car was largely a carryover from 1969 (and 1968, for that matter), there were a few changes to distinguish the model. Perhaps the most drastic was the elimination of the convertible model, which is not surprising considering the low sales numbers it had been posting.

Hardtop

Unfortunately, the slight styling modifications would not help boost sales, as the car had its worst sales year ever. Only 7,748 were produced, which represented a 48 percent drop from the year before.

Of those cars, only 72 were ordered with the Hemi engine, likely due to the $711 that option added to the car. In contrast, the 3x2-barrel version of the 440 only added $149, and 768 drivers chose this option.

The base price of the car in 1970 was $3,535.

Muscle Car Competition

Throughout the 1960s, it was made evident that many American car-buyers were looking for something different. The new generation of young buyers had money and they wanted sportier, yet still practical cars. But as the 1960s wore on, it seemed that the desire for performance was continually growing.

This culminated in the late 1960s and early 1970s, and Plymouth wisely got in on the action by issuing the GTX as its entrant to the muscle car wars. And it was a great car, and featured more standard performance and luxury than most of the other cars in its class.

Unfortunately, after moderately successful initial years in 1967 and 1968, the car became continually overlooked. While other muscle car sales were booming, sales were dismal in 1970 for the GTX and would get worse in 1971, when it would be discontinued. But by 1971, the muscle car class was on the decline, anyway. Insurance prices were going up and the government was about to land hard on the car companies with new emissions and safety regulations that would effectively neuter the muscle cars that were left.

Engine Specifications

TypeSizeCarbHorse PowerTourqe
426 Hemi426ci2x4bbl425 hp @ 5000 rpm490 lb-ft @ 4000 rpm
440 Six Barrel440ci3x2bbl390 hp @ 4700 rpm490 lb-ft @ 3200 rpm
440440ci1x4bbl375 hp @ 4600 rpm480 lb-ft @ 3200 rpm

Performance Statistics

0 to 60 mphQuarter MileEngineSource
6.5 sec14.9 sec @ 95.4 mph440ci/375hpEstimate
1970 GTX
1970 GTX
1970 GTX
1970 GTX
1970 GTX

User reviews

Average user rating from: 2 user(s)

Overall rating 
 
4.6
Looks 
 
5.0  (2)
Performance 
 
5.0  (2)
Parts Availability 
 
4.0  (2)
Collectability 
 
4.5  (2)
Ratings (the higher the better)
Looks*  
How Does The Car Look? Has the design aged well?
Performance*  
How does the performance of this car compare to similar models?
Parts Availability*  
How available are both used parts and new parts for performance enhancement, general repair and muscle car restoration?
Collectability*  
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Verdict
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1970 GTX 2010-10-29 02:44:17 Todd
Overall rating 
 
4.5
Looks 
 
5.0
Performance 
 
5.0
Parts Availability 
 
4.0
Collectability 
 
4.0
Reviewed by Todd    October 29, 2010

Beautiful

One of the best looking cars to ever roll out of Detroit.

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1970 GTX 2009-01-11 21:37:36 Muscle Car Dude
Overall rating 
 
4.8
Looks 
 
5.0
Performance 
 
5.0
Parts Availability 
 
4.0
Collectability 
 
5.0
Reviewed by Muscle Car Dude    January 11, 2009

Last Of The Classics

This was the last of the classic GTXs. If it were not for the scoops on the rear quarter deck this would be my favorite. If we could put the grill and hood from a 1970 GTX onto the 1969 model we would have the perfect GTX. As always, performance was awesome.

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