Volvo SI6 engine

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Volvo SI6 engine
Manufacturer Volvo Cars
Production 2006–2015
Combustion chamber
Configuration I6
Displacement 2.9L–3.2L
Cylinder block alloy Aluminum
Cylinder head alloy Aluminum
Valvetrain DOHC
Fuel system Fuel injection
Management Bosch ME
Fuel type Petrol
Oil system Wet sump
Cooling system Water-cooled
Predecessor Volvo Modular Engine
Successor VEA

Volvo designed the SI6 ("short inline 6") straight-6 automobile engine for use in 2007 models. An evolution of the company's long-used straight-5 Volvo Modular engine, which itself is an evolution of the Volvo B6304 straight six engine, the SI6 can be mounted transversely for front wheel drive or all wheel drive applications. Despite the added cylinder and displacement, the engine remains compact, and is in fact 1 mm (0.04 in) shorter than the previous straight-5. The engine was initially offered in two displacements — a 3.0 L turbocharged version and a 3.2 L naturally aspirated version. Both offered variable cam timing, though only the turbo version varies both the intake and exhaust valves. On top of the variable cam timing used on the intake cam of the naturally aspirated engine it also had variable valve lift by using Cam Profile Switching (CPS).

Production of the Volvo SI6 began at the Ford Bridgend Engine Plant in Wales in May 2006. It was assumed that the engines would be used in European Ford and Jaguar products as well as Volvos.[1][2]

The Volvo SI6 engine was discontinued 2016[3] and replaced by the straight-four Volvo Modular engine that delivers up to 302 PS (222 kW) and 400 N·m (300 lb·ft) of torque.


The 3.0 L turbocharged engine is available in a light-pressure turbo (LPT) version. Cylinder bore is 82.0 mm (3.23 in) and stroke is 93.2 mm (3.67 in) with a compression ratio of 9.3:1.
In 2010 for MY2011 a new upgraded version was unveiled with the new Volvo S60 giving higher output and lower fuel consumption to replace the old T6 in all cars.

Model Power Torque
T6 304 PS (224 kW; 300 hp) 325 lb·ft (441 N·m)



Model Power Torque
T6 286 PS (210 kW; 282 hp) 295 lb·ft (400 N·m)



The naturally aspirated 3.2 L engine has a bore of 84.0 mm (3.31 in) and stroke is 96.0 mm (3.78 in) with a compression ratio of 10.8:1.
In 2010 for MY2011 a new upgraded version was unveiled with higher output and lower fuel consumption.


The B6324S is a 3.2 L (3,192 cc) straight-six. Bore is 84 mm (3.3 in) and stroke is 96 mm (3.8 in) with a compression ratio of 10.8:1. It is naturally aspirated with a power output of 238 PS (175 kW; 235 hp) at 6200 rpm, and produces 320 N·m (240 lb·ft) of torque at 3200 rpm.[4]



Model Power Torque
3.2 245 PS (180 kW; 242 hp) 236 lb·ft (320 N·m)
3.2 PZEV 231 hp (172 kW) 221 lb·ft (300 N·m)



Model Power Torque
3.2 233 PS (171 kW; 230 hp) 234 lb·ft (317 N·m)


See also[edit]



  1. ^ Wim Oude Weernink and Bradford Wernle. "Building Blocks: Ford learns a lesson from Lego". AutoWeek. Retrieved March 30, 2006. 
  2. ^ Staff Report. "Ford To Produce New PAG 6-Cylinder Engine". Retrieved May 26, 2006. 
  3. ^
  4. ^