USA vs USA — 1970 vs 1968
| Firebird Trans Am | Javelin SST 390 | |
|---|---|---|
| Horsepower | 335 hp | 315 hp |
| Torque | 480 lb-ft | 425 lb-ft |
| Engine Size | 7,456 cc | 6,391 cc |
| 0-60 mph | 5.4 sec | 6.8 sec |
| Top Speed | 130 mph | 125 mph |
| ¼ Mile | 13.5 sec | 14.8 sec |
| Weight | 3,500 lbs | 3,200 lbs |
| Wheelbase | 2,743 mm | 2,794 mm |
| Length | 4,902 mm | 4,877 mm |
| Units Produced | 3,196 | 56,462 |
| Original MSRP | $4,305 | $2,740 |
| Value (Excellent) | $150,000 | $45,000 |
| Collectibility | 9/10 | 7/10 |
| Rarity | 5/10 | 6/10 |
The 1970 Pontiac Firebird Trans Am holds an edge across most measurable criteria, offering quicker acceleration, higher top speed, greater rarity. That said, the 1968 AMC Javelin SST 390 brings lighter weight, better value and remains a compelling choice for enthusiasts who value AMC heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
Among Pony Car enthusiasts, the matchup between the 1970 Pontiac Firebird Trans Am and 1968 AMC Javelin SST 390 is one for the ages. These Muscle era machines competed directly for buyers' attention and continue to vie for collectors' affections today. The 1970 Pontiac Firebird Trans Am holds a clear advantage in raw power with 335 hp compared to 315 hp, a 20-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Pontiac Firebird uses a V8 OHV (Pontiac 455) displacing 7,456 cc, while the AMC Javelin relies on a V8 OHV (AMC 390) with 6,391 cc. In the sprint to 60 mph, the 1970 Pontiac Firebird Trans Am edges ahead at 5.4 seconds versus 6.8 seconds. The AMC Javelin carries a weight advantage, tipping the scales 300 lbs lighter. Rarity plays a significant role here — with only 3,196 units built, the 1970 Pontiac Firebird Trans Am is considerably scarcer than the AMC Javelin's 56,462 examples. On the collector market, the 1970 Pontiac Firebird Trans Am commands a significant premium over the 1968 AMC Javelin SST 390, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1970 Pontiac Firebird Trans Am rates higher among enthusiasts and auction houses.