2004 Chevrolet Express vs. 1971 Chevrolet Impala
To start off, 2004 Chevrolet Express is newer by 33 year(s). Which means there will be less support and parts availability for 1971 Chevrolet Impala. In addition, the cost of maintenance, including insurance, on 1971 Chevrolet Impala would be higher. At 5,970 cc (8 cylinders), 2004 Chevrolet Express is equipped with a bigger engine. In terms of performance, 2004 Chevrolet Express (300 HP @ 5600 RPM) has 190 more horse power than 1971 Chevrolet Impala. (110 HP @ 3800 RPM). In normal driving conditions, 2004 Chevrolet Express should accelerate faster than 1971 Chevrolet Impala. With that said, vehicle weight also plays an important factor in acceleration. 2004 Chevrolet Express weights approximately 766 kg more than 1971 Chevrolet Impala. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 Chevrolet Express (488 Nm) has 232 more torque (in Nm) than 1971 Chevrolet Impala. (256 Nm). This means 2004 Chevrolet Express will have an easier job in driving up hills or pulling heavy equipment than 1971 Chevrolet Impala.
Compare all specifications:
| 2004 Chevrolet Express | 1971 Chevrolet Impala | |
| Make | Chevrolet | Chevrolet |
| Model | Express | Impala |
| Year Released | 2004 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 5970 cc | 4092 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 300 HP | 110 HP |
| Engine RPM | 5600 RPM | 3800 RPM |
| Torque | 488 Nm | 256 Nm |
| Engine Bore Size | 102 mm | 98.2 mm |
| Engine Stroke Size | 92 mm | 89.6 mm |
| Engine Compression Ratio | 9.4:1 | 8.5:1 |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 2481 kg | 1715 kg |
| Vehicle Length | 5700 mm | 5600 mm |
| Vehicle Width | 2020 mm | 2030 mm |
| Vehicle Height | 2080 mm | 1370 mm |
| Wheelbase Size | 3440 mm | 3100 mm |
