Australia vs USA — 1968 vs 1967
| HK Monaro GTS 327 | GTX 440+6 | |
|---|---|---|
| Horsepower | 250 hp | 390 hp |
| Torque | 340 lb-ft | 490 lb-ft |
| Engine Size | 5,359 cc | 7,210 cc |
| 0-60 mph | 7.2 sec | 5.2 sec |
| Top Speed | 130 mph | 130 mph |
| ¼ Mile | 15.0 sec | 13.5 sec |
| Weight | 3,109 lbs | 3,800 lbs |
| Wheelbase | 2,768 mm | 2,946 mm |
| Length | 4,698 mm | 5,258 mm |
| Units Produced | 6,045 | 2,035 |
| Original MSRP | — | $3,733 |
| Value (Excellent) | $250,000 | $175,000 |
| Collectibility | 9/10 | 9/10 |
| Rarity | 7/10 | 8/10 |
The 1967 Plymouth GTX 440+6 emerges ahead in most objective measures, offering more power, quicker acceleration, greater rarity. The 1968 Holden HK Monaro GTS 327 counters with lighter weight, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.
When Australia engineering meets USA craftsmanship, the result is one of the most compelling matchups in the classic car world. The 1968 Holden HK Monaro GTS 327 and 1967 Plymouth GTX 440+6 embody their respective national automotive traditions while competing in the same arena. The 1967 Plymouth GTX 440+6 holds a clear advantage in raw power with 390 hp compared to 250 hp, a 140-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Holden HK Monaro uses a V8 OHV displacing 5,359 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 7.2 seconds. The Holden HK Monaro carries a weight advantage, tipping the scales 691 lbs lighter. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference.