USA vs USA — 1970 vs 1970
| GSX Stage 1 455 | GSX Stage 1 | |
|---|---|---|
| Horsepower | 360 hp | 360 hp |
| Torque | 510 lb-ft | 510 lb-ft |
| Engine Size | 7,456 cc | 7,456 cc |
| 0-60 mph | 5.5 sec | 5.5 sec |
| Top Speed | 130 mph | 125 mph |
| ¼ Mile | 13.4 sec | 13.4 sec |
| Weight | 3,600 lbs | — |
| Wheelbase | 2,845 mm | 2,845 mm |
| Length | 5,156 mm | 5,156 mm |
| Units Produced | 678 | 678 |
| Original MSRP | $3,283 | — |
| Value (Excellent) | $250,000 | $200,000 |
| Collectibility | 9/10 | 5/10 |
| Rarity | 8/10 | 8/10 |
It's a closely fought contest. The 1970 Buick GSX Stage 1 455 brings higher top speed, stronger collectibility to the table, and the 1970 Buick GSX Stage 1 answers with quicker acceleration. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
Few model names carry as much weight as the Buick GSX. The 1970 and 1970 iterations represent different chapters in this storied nameplate's history, each reflecting the priorities and technologies of its era. On paper, the two are remarkably close in power output, with the 1970 Buick GSX Stage 1 455 producing 360 hp and the 1970 Buick GSX Stage 1 delivering 360 hp. Under the hood, the contrast is notable: the Buick GSX uses a V8 OHV (Buick 455 Stage 1) displacing 7,456 cc, while the Buick GSX relies on a V8 OHV 16V with 7,456 cc. In the sprint to 60 mph, the 1970 Buick GSX Stage 1 edges ahead at 5.5 seconds versus 5.5 seconds. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference. From a collectibility standpoint, the 1970 Buick GSX Stage 1 455 rates higher among enthusiasts and auction houses.