Toyota GZ engine

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The Toyota GZ engine family currently consists of one engine, the 1GZ-FE. Its sole use is as the powerplant for the Japanese market only Toyota Century limousine from 1997 onward.


The 1GZ-FE is a 5.0 L (4996 cc) V12 48-valve DOHC 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. Output is 280 hp (210 kW) at 5200 rpm with 355 lb·ft (481 N·m) of torque at 4000 rpm. The fuel system is a EFI (Electronic Fuel Injection) system controlled by two ECUs (one for each bank of cylinders).

One notable use of this engine has been by the Top Secret (company) in a custom 950 hp (710 kW) Toyota Supra.[1]