The Toyota 3S-FE is a 2,0 l (1,998 cc, 121.93 cu-in) straight-four 4-stroke natural aspirated gasoline engine from Toyota S-family. This engine was manufactured by Toyota Motor Company from 1986 to 2003.
The Toyota 3S-FE features a cast-iron cylinder block and aluminum head with two camshafts (DOHC) and four valves per cylinder (two intakes and two exhaust). The 3S-FE engine has VVT-i (Variable Valve Timing with intelligence) for the intake side (after 1996), Electronic fuel injection (EFI), and a distributorless ignition system for the later version or distributor ignition system for an early version.
An 86.0 mm (3.39 in) cylinder bore and 86.0 mm (3.39 in) piston stroke give the 3S-FE motor a total of 1,998 cc (121.93 cu-in) of displacement. The compression ratio rating is 9.5:1.