All Barra I6 engines are Double Over Head Cam [DOHC] with Variable Cam Timing [VCT].
They are a development of the Single Over Head Cam I6s produced between 1988 and 2002, which in turn are a development of the 3.3 and 4.1 L push-rod flat-tappet I6, developed in Australia as an “Alloy Head” Crossflow in 1981
Common specifications to all Barra I6’s:
Bore: 92.26 mm (3.6 in)
Stroke: 99.31 mm (3.9 in)
Displacement: 3984 cc
Number of valves: 24
Power Output:
156 kW (209 hp) (autogas) (2002–2011)
182 kW (244 hp) (petrol)(2002–2005)
190 kW (250 hp) (petrol) (2005–2008)
195 kW (261 hp) (petrol) (2008–2016)
198 kW (266 hp) (autogas) (2011–2016)
240 kW (320 hp) (turbocharged petrol) (2002–2005)
245 kW (329 hp) (turbocharged petrol) (2005–2008)
270 kW (360 hp) (turbocharged petrol) (2004–2008)
270 kW (360 hp) (turbocharged petrol) (2008–26 September 2016)
310 kW (420 hp) (turbocharged petrol) (2008–2014)
325 kW (436 hp) (turbocharged petrol) (February 2016–26 September 2016)
156 kW (209 hp) (autogas) (2002–2011)
182 kW (244 hp) (petrol)(2002–2005)
190 kW (250 hp) (petrol) (2005–2008)
195 kW (261 hp) (petrol) (2008–2016)
198 kW (266 hp) (autogas) (2011–2016)
240 kW (320 hp) (turbocharged petrol) (2002–2005)
245 kW (329 hp) (turbocharged petrol) (2005–2008)
270 kW (360 hp) (turbocharged petrol) (2004–2008)
270 kW (360 hp) (turbocharged petrol) (2008–26 September 2016)
310 kW (420 hp) (turbocharged petrol) (2008–2014)
325 kW (436 hp) (turbocharged petrol) (February 2016–26 September 2016)
