Based on the B-type predecessor engine, the F-type engine was born in 1951. It was a 6-cylinder gasoline engine that boasts the longest history of any engine Toyota has produced. This new engine was the first to go into the 20-series. The F-type later received minor improvements, including changes in the compression ratio, and with the change from the FJ55V to the FJ56V the bore was further extended for an increase of 352cc of piston displacement. The 3F-type was further modified to make it lighter and to run with less friction.
In time with the development of the 60-series it was replaced with the 3F-E-type that had electronic controls, which was used in the early models of the 80-series. Eventually to cope with strict emissions regulations and to further boost the output, the DOHC 24-valve 1FZ-FE-type engine was developed.

» F(Early Model)

Cylinder	In-line 6 Gasoline OHV 2-Valve
Bore x Stroke	90.0 x 101.6
Displacement	3,878cc
Compression Ratio	6.8
Max Power	105HP/3,200rpm
Max Torque	27.0kgm/2,000rpm
Using Model	FJ20/21/24/28

 

» 2F

Cylinder	In-line 6 Gasoline OHV 2-Valve
Bore x Stroke	94.0 x 101.6
Displacement	4,230cc
Compression Ratio	7.8
Max Power	140PS/3,600rpm
Max Torque	30.0kgm/1,800rpm
Using Model	FJ56V, FJ60V, FJ61V

 

» 3F(Early Model)

Cylinder	In-line 6 Gasoline OHV 2-Valve
Bore x Stroke	94.0 x 95.0
Displacement	3,955cc
Compression Ratio	8.1
Max Power	155PS/4,200rpm
Max Torque	30.0kgm/2,200rpm
Using Model	FJ62V

 

» 3F-E

Cylinder	In-line 6 Gasoline OHV 2-Valve
Bore x Stroke	94.0 x 95.0
Displacement	3,955cc
Compression Ratio	8.1
Max Power	155PS/4,200rpm
Max Torque	29.5kgm/2,600rpm
Using Model	FJ62G, FJ80G

 

» 1FZ-FE

Cylinder	In-line 6 Gasoline DOHC 4-Valve
Bore x Stroke	100.0 x 95.0
Displacement	4,476cc
Compression Ratio	9.0
Max Power	215PS/4,200rpm
Max Torque	38.0kgm/2,600rpm
Using Model	FZJ80G