USA vs USA — 1967 vs 1973
| Firebird 400 | Grand Am 455 V8 | |
|---|---|---|
| Horsepower | 330 hp | 250 hp |
| Torque | 430 lb-ft | 390 lb-ft |
| Engine Size | 6,555 cc | 7,456 cc |
| 0-60 mph | 6.4 sec | 8.0 sec |
| Top Speed | 130 mph | 118 mph |
| ¼ Mile | 14.5 sec | 15.8 sec |
| Weight | 3,300 lbs | 4,100 lbs |
| Wheelbase | 2,743 mm | 2,845 mm |
| Length | 4,851 mm | 5,334 mm |
| Units Produced | 82,560 | 56,063 |
| Original MSRP | $2,781 | $4,353 |
| Value (Excellent) | $90,000 | $32,000 |
| Collectibility | 8/10 | 6/10 |
| Rarity | 5/10 | 5/10 |
On balance, the 1967 Pontiac Firebird 400 makes a stronger case on paper with more power, quicker acceleration, higher top speed. However, the 1973 Pontiac Grand Am 455 V8 counters with better value, and its appeal extends beyond mere numbers. Choose the 1967 Pontiac Firebird 400 for outright capability, or the 1973 Pontiac Grand Am 455 V8 for a more distinctive ownership experience.
Pontiac has long offered a diverse lineup, and comparing the 1967 Pontiac Firebird 400 with the 1973 Pontiac Grand Am 455 V8 highlights the breadth of the marque's engineering philosophy. The 1967 Pontiac Firebird 400 holds a clear advantage in raw power with 330 hp compared to 250 hp, a 80-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Pontiac Firebird uses a V8 OHV (Pontiac 400) displacing 6,555 cc, while the Pontiac Grand Am relies on a V8 OHV (Pontiac 455) with 7,456 cc. In the sprint to 60 mph, the 1967 Pontiac Firebird 400 edges ahead at 6.4 seconds versus 8.0 seconds. The Pontiac Firebird carries a weight advantage, tipping the scales 800 lbs lighter. On the collector market, the 1967 Pontiac Firebird 400 commands a significant premium over the 1973 Pontiac Grand Am 455 V8, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1967 Pontiac Firebird 400 rates higher among enthusiasts and auction houses.