Toyota FZ engine

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Toyota FZ engine
Toyota 1FZ FE.jpg
Manufacturer Toyota
Production 1984-current
Combustion chamber
Configuration I6
Displacement 4.5 L (4,476 cc)
Cylinder bore 100 mm (3.9 in)
Piston stroke 95 mm (3.7 in)
Valvetrain DOHC
Fuel system
Power output
  • 190 hp (140 kW) (1FZ-F)
  • 212 hp (158 kW) (1FZ-FE)
Torque output
  • 268 lb·ft (363 N·m) @ 2800 RPM (1FZ-F)
  • 275 lb·ft (373 N·m) @ 3200 RPM (1FZ-FE)
Predecessor Toyota F engine

The Toyota FZ engine was a 24-valve, 4.5L DOHC straight-6 internal combustion engine manufactured by Toyota to replace the F-series engine. It was used primarily in SUVs because of its large displacement, smoothness, ruggedness and torque.

Technical data[edit]

The engine displaced 4476 cc with a bore and stroke measuring 100 millimetres (3.9 in) x 95 millimetres (3.7 in), respectively and a 9.0:1 compression ratio; the head used Toyota's narrow-angle overhead camshafts for better fuel economy.[1] The 1FZ had only two variants available: the 1FZ-F and the 1FZ-FE. The only significant difference between the two was the inclusion of electronic fuel injection on the 1FZ-FE, whereas the 1FZ-F used a carburetor.[2] Starting in 1998, the fuel injected version of the 1FZ-FE was also manufactured with a direct ignition variation available in certain non-US markets (the engine pictured here is that variant discernible by the intake manifold and lack of distributor).

The 1FZ-F produced 190 horsepower (140 kW) at 4400 RPM and 268 pound-feet (363 N·m) at 2800 RPM; its fuel injected counterpart produced 212 horsepower (158 kW) at 4600 RPM and 275 pound-feet (373 N·m) at 3200 RPM.


The 1FZ-F and -FE were used in the following vehicles:

See also[edit]

List of Toyota engines