USA vs USA — 1968 vs 1974
| GTO 400 Ram Air | Firebird Super Duty 455 | |
|---|---|---|
| Horsepower | 366 hp | 290 hp |
| Torque | 445 lb-ft | 400 lb-ft |
| Engine Size | 6,555 cc | 7,456 cc |
| 0-60 mph | 6.2 sec | 5.9 sec |
| Top Speed | 130 mph | 124 mph |
| ¼ Mile | 14.2 sec | 13.8 sec |
| Weight | 3,500 lbs | 3,700 lbs |
| Wheelbase | 2,845 mm | 2,768 mm |
| Length | 5,131 mm | 5,073 mm |
| Units Produced | 87,684 | 943 |
| Original MSRP | $3,101 | $4,446 |
| Value (Excellent) | $110,000 | $175,000 |
| Collectibility | 8/10 | 9/10 |
| Rarity | 5/10 | 9/10 |
It's a closely fought contest. The 1968 Pontiac GTO 400 Ram Air brings more power, higher top speed, lighter weight to the table, and the 1974 Pontiac Firebird Super Duty 455 answers with quicker acceleration, greater rarity, stronger collectibility. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
Pontiac has long offered a diverse lineup, and comparing the 1968 Pontiac GTO 400 Ram Air with the 1974 Pontiac Firebird Super Duty 455 highlights the breadth of the marque's engineering philosophy. The 1968 Pontiac GTO 400 Ram Air holds a clear advantage in raw power with 366 hp compared to 290 hp, a 76-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Pontiac GTO uses a V8 OHV (Pontiac 400) displacing 6,555 cc, while the Pontiac Firebird relies on a V8 OHV with 7,456 cc. In the sprint to 60 mph, the 1974 Pontiac Firebird Super Duty 455 edges ahead at 5.9 seconds versus 6.2 seconds. Rarity plays a significant role here — with only 943 units built, the 1974 Pontiac Firebird Super Duty 455 is considerably scarcer than the Pontiac GTO's 87,684 examples. On the collector market, the 1974 Pontiac Firebird Super Duty 455 commands a significant premium over the 1968 Pontiac GTO 400 Ram Air, reflecting differences in prestige and rarity.