Toyota GZ engine

The 1GZ-FE is a 4,996 cc (5.0 L) 48-valve DOHC V12 engine with variable valve timing (VVT-i). Bore is 81 mm and stroke is 80.8 mm, with a compression ratio of 10.5:1. Official output as per Japanese Manufacturers' Agreement is 206 kW (276 hp) at 5,200 rpm although true power output is estimated to be around 230 kW (308 hp). Peak torque of 481 N⋅m (355 lbf⋅ft) is at 4,000 rpm with over 400 N⋅m (295 lbf⋅ft) available from as little as 1200 rpm. The Electronic fuel-injection system is controlled by two ECUs, one for each bank of six cylinders. The engine is capable of running on either bank should a malfunction occur.[1]

In 2010 the standard engine was revised in order to meet tough fuel economy and emissions standards, reducing power slightly and peak torque to 460 N⋅m (339 lbf⋅ft).[2]

Applications

• 1997–2016 Toyota Century (GZG50)
• 2006–2008 Toyota Century Royal

A version is available running on compressed natural gas which produces 190 kW (255 hp) and 405 N⋅m (299 lbf⋅ft).[3][4]

Applications

• 2003–2004 Toyota Century

• List of Toyota engines
• Acoustic Control Induction System