Nissan VH45DE Engine Overviews
Starting the Nissan VH engine series spec information share, the first VH engine that will be discuss is Nissan VH45DE engine, this Nissan engine has come with 4.5 litre/4,494 cc(274.241 cu in) of piston displacement. That engine capacity was produced from 8 cylinders that installed with V configuration with 90 degree of configuration method. Each cylinder was installed with 4 valves. The valves train that being used by this engine is double overhead champ valves gear and completed with variable valve timing feature. Aside default engine specs, there are tones of features are we can find on this Nissan VH45DE Engine such as:
- Forged steel crankshaft.
- Forged steel connecting rods.
- 6 Bolt main bearing caps with studs.
- Full-length main bearing girdle.
- Lightweight, floating pistons with molybdenum coating.
- Sodium-filled exhaust valves.
- Cross-flow cooling system.
- Hydraulic lash adjusters.
- Single-row silent timing chain.
- Coil-on-plug ignition system.
- Lifter buckets ride directly on cams to reduce friction.
While for fuel system of this engine was using Electronic Fuel injection, the injection system that can improved combustion process of the engine. Move to the engine coolant system of this Nissan VH45DE engine, just like the others Nissan engine, it was using water coolant system that hanging onto fan and radiator part as the key part of this coolant system.
Nissan VH45DE Engine Specs
Here they are detailed specifications of this Nissan VH45DE Engine
| Specs Item | Specs |
| Engine Type | Nissan VH45DE Engine |
| Engine Code | VH45DE |
| Engine Manufacturer | Nissan |
| Engine Variants | Nissan VH engine |
| Displacement | 4.5 litre
4494 cc (274.241 cu in) |
| Transmission Type | 4 speed automatic transmission |
| Compression Ratio | 10.2:1 |
| Bore and Stroke (in.) | 3.66 × 3.26 |
| Valve configuration (pcs) | 4 pieces/cylinder total 32 valves |
| Valve System | Double Over Head Champ |
| Fuel system | Electronic Fuel Injection |
| Recommended Fuel | Unleaded Gasoline octane |
| Maximum engine speed | 6900 rpm |
| Horsepower(SAE net@rpm) | 278 hp (207 kW) @ 6000 rpm |
| Torque (lb. ft. @ rpm) | 292 lb·ft (396 N·m) at 4000 |
| Engine coolant | water |
| Aspiration | Normal |
| Engine installation | Front Longitudinal |
Nissan VH45DE Engine Application
This engine was used by following Nissan vehicles
- 1990-1996 Infiniti Q45
- 1991-2002 Nissan President

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