Opel Diplomat B 5.3 V8 (230 hp) Automatic
Gasoline engine with 230 hp (169 kW) and 315 lb-ft (427 Nm), built 1969–1978, sedan body, rear-wheel drive. It is the most powerful gasoline version of the generation.
Power230 hp (169 kW)
Torque315 lb-ft (427 Nm)
0–62 mph8.5 s
Top speed127 mph (205 km/h)
FuelGasoline
Specifications
Engine
| Engine version | 5.3 V8 (230 hp) Automatic |
|---|---|
| Displacement | 5.4 L (5,354 cm³) |
| Cylinders | 8 |
| Cylinder layout | V-engine |
| Valves per cylinder | 2 |
| Valvetrain | OHV |
| Fuel system | Carburetor |
| Compression ratio | 10-5 |
| Bore | 101.6 mm |
| Stroke | 82.55 mm |
Performance
| Power | 230 hp (169 kW) @ 4700 rpm |
|---|---|
| Torque | 315 lb-ft (427 Nm) @ 3000-3200 rpm |
| 0–62 mph (0–100 km/h) | 8.5 s |
| Top speed | 127 mph (205 km/h) |
Fuel economy and emissions
| Fuel | Gasoline |
|---|---|
| Fuel tank | 21.1 gal (80 l) |
Body, dimensions and weight
| Body style | Sedan |
|---|---|
| Doors | 5 |
| Length | 193.7 in (4,920 mm) |
| Width | 72.9 in (1,852 mm) |
| Height | 57.1 in (1,450 mm) |
| Curb weight | 3,726 lb (1,690 kg) |
| Gross vehicle weight | 4,850 lb (2,200 kg) |
| Cargo volume | 16.8 cu ft (475 l) |
| Drag coefficient | 0.45 |
Drivetrain and chassis
| Drive | Rear-wheel drive |
|---|
What to check on an Opel Diplomat with this engine
- On a gasoline engine, check the oil consumption, the timing chain or belt and, on turbo engines, the turbocharger.
- Test the clutch or the automatic transmission from a cold start and in the low gears.
- Compare the odometer with the readings in the service records and in the VIN history report: a big gap means the mileage was rolled back.
Other Opel Diplomat B engines
| Engine | Fuel | Power | Combined |
|---|---|---|---|
| 2.8 E (165 hp) | Gasoline | 165 hp (121 kW) |