USA vs USA — 1970 vs 1967
| Chevelle SS 454 LS6 | GTX 440+6 | |
|---|---|---|
| Horsepower | 450 hp | 390 hp |
| Torque | 500 lb-ft | 490 lb-ft |
| Engine Size | 7,440 cc | 7,210 cc |
| 0-60 mph | 5.4 sec | 5.2 sec |
| Top Speed | 130 mph | 130 mph |
| ¼ Mile | 13.1 sec | 13.5 sec |
| Weight | 3,750 lbs | 3,800 lbs |
| Wheelbase | 2,845 mm | 2,946 mm |
| Length | 5,023 mm | 5,258 mm |
| Units Produced | 4,475 | 2,035 |
| Original MSRP | $3,835 | $3,733 |
| Value (Excellent) | $350,000 | $175,000 |
| Collectibility | 10/10 | 9/10 |
| Rarity | 8/10 | 8/10 |
It's a closely fought contest. The 1970 Chevrolet Chevelle SS 454 LS6 brings more power, stronger collectibility to the table, and the 1967 Plymouth GTX 440+6 answers with quicker acceleration, greater rarity. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
In the world of Muscle Car cars, few comparisons generate as much discussion as the 1970 Chevrolet Chevelle SS 454 LS6 versus the 1967 Plymouth GTX 440+6. Both hail from Muscle era and represent the pinnacle of their respective manufacturers' ambitions. The 1970 Chevrolet Chevelle SS 454 LS6 holds a clear advantage in raw power with 450 hp compared to 390 hp, a 60-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Chevrolet Chevelle uses a V8 OHV (LS6 big-block) displacing 7,440 cc, while the Plymouth GTX relies on a V8 OHV (440 Six Pack) with 7,210 cc. In the sprint to 60 mph, the 1967 Plymouth GTX 440+6 edges ahead at 5.2 seconds versus 5.4 seconds. Each of these machines offers a unique window into the era that produced it, making both worthy of consideration by collectors and drivers alike.