From Yamaha Wiki

The Yamaha V8 engine is a motor developed by Yamaha Motor Corporation for Volvo Cars. It is built in Japan and based on Volvo designs.

Usage

Volvo began offering a 4.4 L V8 engine in its large Volvo P2 platform Automobile in 2005. It was initially offered in the Volvo XC90 SUV. It is available on the Volvo S80 and mated to a six speed Aisin Seiki transmission of Japan also with a Swedish Haldex all wheel drive system AWD. The 4.4 L V8 Volvo engine is built by Yamaha in Japan under Volvo design and specifications.

The engine is unique in Ford's wide range of List of Ford engines in that it is designed for [[transverse engine|transverse}} use and has a V6-like 60° bank angle. Officials of all three companies involved insist that the Volvo V8 is not related to the SHO engine.

Specification

As a Volvo V8, this new engine uses the similar Volvo engine naming system. The engine is internally called the Volvo B8444S. B being for Bensin (petrol), 4.4 for the total displacement of the engine and the last 4 for the number of valves per cylinder. This engine also uses original Volvo parts.

The engine is a 4.4 L aluminum DOHC V8 which produces 315 PS (232 kW; 311 hp) and 440 N·m (325 lb·ft). It has a a 60 degree cylinder bank. The engine is forged from Aluminium reducing its weight.