1991 Chevrolet Blazer vs. 1970 Mercury Comet
To start off, 1991 Chevrolet Blazer is newer by 21 year(s). Which means there will be less support and parts availability for 1970 Mercury Comet. In addition, the cost of maintenance, including insurance, on 1970 Mercury Comet would be higher. At 4,942 cc (8 cylinders), 1970 Mercury Comet is equipped with a bigger engine. In terms of performance, 1991 Chevrolet Blazer (158 HP @ 4000 RPM) has 21 more horse power than 1970 Mercury Comet. (137 HP @ 4200 RPM). In normal driving conditions, 1991 Chevrolet Blazer should accelerate faster than 1970 Mercury Comet. With that said, vehicle weight also plays an important factor in acceleration. 1991 Chevrolet Blazer weights approximately 140 kg more than 1970 Mercury Comet. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Chevrolet Blazer is four wheel drive (4WD), it will have significant more traction and grip than 1970 Mercury Comet. In wet, icy, snow, or gravel driving conditions, 1991 Chevrolet Blazer will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1970 Mercury Comet (319 Nm @ 2000 RPM) has 7 more torque (in Nm) than 1991 Chevrolet Blazer. (312 Nm @ 2800 RPM). This means 1970 Mercury Comet will have an easier job in driving up hills or pulling heavy equipment than 1991 Chevrolet Blazer.
Compare all specifications:
| 1991 Chevrolet Blazer | 1970 Mercury Comet | |
| Make | Chevrolet | Mercury |
| Model | Blazer | Comet |
| Year Released | 1991 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 4300 cc | 4942 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 158 HP | 137 HP |
| Engine RPM | 4000 RPM | 4200 RPM |
| Torque | 312 Nm | 319 Nm |
| Torque RPM | 2800 RPM | 2000 RPM |
| Engine Bore Size | 101.6 mm | 101.6 mm |
| Engine Stroke Size | 88.4 mm | 76.2 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Vehicle Weight | 1530 kg | 1390 kg |
| Vehicle Length | 4500 mm | 4800 mm |
| Vehicle Width | 1670 mm | 1800 mm |
| Vehicle Height | 1630 mm | 1360 mm |
| Wheelbase Size | 2720 mm | 2800 mm |
