The Volvo B8444S 4.4-liter V8 engine was produced at the plant in Japan from 2005 to 2010 and was installed in the second-generation S80 sedan and XC90 crossover with automatic transmission. Such a power unit was developed and produced by the Japanese company Yamaha Motor Corporation.
The engine was installed on:
- Volvo S80 II (124) in 2006 – 2010;
- Volvo XC90 I (275) in 2005 – 2010.
Specifications
| Production years | 2005-2010 |
| Displacement, cc | 4414 |
| Fuel system | injector |
| Power output, hp | 315 |
| Torque output, Nm | 440 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 94 |
| Piston stroke, mm | 79.5 |
| Compression ratio | 10.4 |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | Dual VVTi |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.7 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Volvo XC90 2008) — city — highway — combined |
19.9 9.8 13.5 |
| Engine lifespan, km | ~500 000 |
| Weight, kg | 210 |
Disadvantages of the B8444S engine
- This is a very reliable power unit and the main disadvantage is fuel consumption.
- The most expensive motor problem is the wear of the balance shaft bearing.
- Riding with a humming bearing will usually cause the chain to jump and the valves to bend.
- It is also a large and heavy engine, which reduces the life of the supports and subframe.
- Gaskets quickly tan from overheating and leaks appear from under the valve covers.





