The Toyota S Series engines are a family of straight-four petrol (or CNG) engines with displacements between 1.8 and 2.2 litres, produced by Toyota Motor Corporation from January 1980 to August 2007. The S series has cast iron engine blocks and aluminium cylinder heads. This engine was designed around the new LASRE technology for lighter weight – such as sintered hollow camshafts.

Table of S-block engines + S block engines Code Years Bore Stroke Power Torque Notes 1S 1982–1988 80.5 mm 90.0 mm 9:1 1,832 cc at 5,200/5,400 rpm at 3,400 rpm Camry (SV10 export) 1S-L 80.5 mm 90.0 mm 9:1 1,832 cc at 5,200 rpm at 3,400 rpm Corona (ST150) (New Zealand, Latin America) 1S-U1S-LU 1982–1986 80.5 mm 90.0 mm 9:1 1,832 cc at 5,400 rpm at 3,400 rpm 1S-iLU 1983–1986 80.5 mm 90.0 mm 9:1 1,832 cc at 5,400 rpm at 2,800-3,000 rpm 1S-iL 1986 80.5 mm 90.0 mm 9:1 1,832 cc at 5,200 rpm at 3,400 rpm EU 1S-E 1984–1987 80.5 mm 90.0 mm 1,832 cc Cressida/MKII/Chaser (SX60) 1S-ELU 1983–1986 80.5 mm 90.0 mm 9:1 1,832 cc at 5,400 rpm at 4,000 rpm Corona FF (ST150) 1S-EL 1986 80.5 mm 90.0 mm 9:1 1,832 cc at 5,200 rpm at 4,000 rpm EU 2S 1984–??? 84.0 mm 90.0 mm 1,995 cc 2S-C 1983–1986 84.0 mm 90.0 mm 8.7:1 1,995 cc at 5,200 rpm at 3,200 rpm Corona (ST141) (Australia)Celica (SA6x) (not US) 2S-E 1982–1987 84.0 mm 90.0 mm 8.7:1 1,995 cc at 4,200 rpm at 2,400 rpm 2S-E 1986 84.0 mm 90.0 mm 8.7:1 1,995 cc US (but not Canadian) Camrys; The extra power is related to new timing, which is now electronically controlled. 2S-E 1986 84.0 mm 90.0 mm 9:1 1,995 cc Carina II ST151 2S-ELU 1986 84.0 mm 90.0 mm 8.7:1 1,995 cc at 5,400 rpm at 4,000 rpm Camry/Vista (SV10) 2S-EL 1984–1986 84.0 mm 90.0 mm 9:1 1,995 cc at 5,200 rpm at 4,000 rpm Camry (SV11), EUToyota Corona (ST151), NZ 2S-ELU 1986 84.0 mm 90.0 mm 9:1 1,995 cc at 5,400 rpm at 4,000 rpm US 2S-E 1986 84.0 mm 90.0 mm 8.7:1 1,995 cc at 5,400 rpm at 4,000 rpm Camry SV11 3S-FC 1987–1991 86.0 mm 86.0 mm 9.8:1 1,998 cc at 5,600 rpm at 5,600 rpm (Aus) at 3,200 rpm CatalyzedCamry (SV21)Holden Apollo (JK/JL) 3S-FE 1987–1990 86.0 mm 86.0 mm 9.8:1 1,998 cc at 5,600 rpm at 4,400 rpm Celica GT (US), Celica ZR (Japan, ST162) 3S-FE 1987–1994 86.0 mm 86.0 mm 9.8:1 1,998 cc at 5,600 rpm at 4,400 rpm Equipped with catalytic converter 3S-FE 1995–1998 86.0 mm 86.0 mm 9.8:1 1,998 cc at 6,000 rpm at 4,400 rpm Refined valve timing and ECU settings, introduced with Carina E (ST190) model 3S-FE 1998–2000 86.0 mm 86.0 mm 9.8:1 1,998 cc at 6,000 rpm at 4,400 rpm Slightly less power with better torque characteristics. Stricter pollution control. Introduced with the new Avensis (ST220) model 3S-FSE 2001–2003(?) 86.0 mm 86.0 mm 9.8:1 1,998 cc at 6,000 rpm at 4,400 rpm D-4 (Direct injection); Corona Premio G D-4 Package (ST210), Nadia D-4 (SXN10-AHSEH) 3S-GE 1985–1989 86.0 mm 86.0 mm 9.2:1 1,998 cc at 6,200 rpm at 4,800 rpm Celica 2.0 GT-i 16, GT-R, GT-S (ST162) 3S-GE 1989–1993 86.0 mm 86.0 mm 10.0:1 1,998 cc at 6,600 rpm at 4,800 rpm Celica 2.0 GT-i 16, GT-R (ST182/ST183), MR2 (SW20) 3S-GE 1994–1998 86.0 mm 86.0 mm 10.3:1 1,998 cc at 7,000 rpm at 4,800 rpm Celica GT, SS-II (ST202), MR2 (SW20), Curren ZS (ST206) 3S-GE 1997–1998 86.0 mm 86.0 mm 11.0:1 1,998 cc at 7,000 rpm at 6,000 rpm Celica (ST202), MR2 (SW20) 3S-GE 1997–1998 86.0 mm 86.0 mm 10.5:1 1,998 cc at 7,000 rpm at 6,000 rpm RAV4 (SXA10), Caldina (ST210) 3S-GE 1997–2005 86.0 mm 86.0 mm 11.5:1 1,998 cc at 7,500 rpm Altezza, Caldina GT 3S-GT (503E) 1987–199? 89.0 mm 86.0 mm 7.0:1 2,140 cc at 8,500 rpm at 5,500 rpm 87C, 88C, Eagle HF89, Eagle Mk III 503E 1987–1989 89.0 mm 86.0 mm 7.0:1 2,140 cc at 8,500 rpm at 5,500 rpm 87C, 88C (Le Mans setup with CT26R turbocharger) 503E 1995–1996 89.0 mm 86.0 mm 7.0:1 2,140 cc at 8,500 rpm Supra GT JZA80 (Le Mans setup, Garrett turbocharger with 55.9 mm restrictor) 503E 1997 86.0 mm 86.0 mm 7.0:1 1,998 cc at 6,800 rpm at 4,500 rpm Supra GT JZA80 (JGTC setup with 45.3 mm restrictor) 3S-GTE 1986–1989 86.0 mm 86.0 mm 8.5:1 1,998 cc at 6,000 rpm at 3,600 rpm Celica GT-Four (ST165) 3S-GTE 1990–1993 86.0 mm 86.0 mm 8.8:1 1,998 cc at 6,000 rpm at 3,200 rpm Celica GT-Four (ST185), MR2 (SW20) 3S-GTE 1994–1999 86.0 mm 86.0 mm 8.5:1 1,998 cc at 6,000 rpm at 4,000 rpm Celica GT-Four (ST205), MR2 (SW20) 3S-GTE 1999–2007 86.0 mm 86.0 mm 9.0:1 1,998 cc at 6,200 rpm at 4,400 rpm Caldina GT-T (ST215W), Caldina GT-Four (ST246W) 4S-Fi 1987–1991 82.5 mm 86.0 mm 9.3:1 1,838 cc at 5,600 rpm at 2,800 rpm Single point fuel injection Carina ED/Corona EXiV(ST180/181 Phase 1) 4S-FETutte le Auto del Mondo 1990, p. 1033 1989–1998 82.5 mm 86.0 mm 9.5:1 1,838 cc at 5,600 rpm at 4,400 rpm Corona (ST170) Carina ED/Corona EXiV(ST180/181 Phase 2 and 3) 4S-FE 1995–1998 82.5 mm 86.0 mm 9.5:1 1,838 cc at 6,000 rpm at 4,600 rpm MKII/Chaser (SX80)Vista Etoile (SV30) 5S-FE 1990–1992 87.0 mm 91.0 mm 9.5:1 2,164 cc at 5,400 rpm at 4,400 rpm Celica ST184 (5th Gen) Australia, MR2 (SW21), Toyota Camry 5S-FE 1993–2001 87.0 mm 91.0 mm 9.5:1 2,164 cc at 5,400 rpm at 4,400 rpm Celica ST204 (6th Gen) Australia, MR2 (SW21), Toyota Camry 5S-FE 1997–1999 87.0 mm 91.0 mm 9.5:1 2,164 cc at 5,200 rpm at 4,400 rpm Camry (4th Gen) U.S. spec 1st semester styling 5S-FE 2000–2001 87.0 mm 91.0 mm 9.5:1 2,164 cc at 5,200 rpm at 4,400 rpm Camry (4th Gen) U.S. spec 2nd semester styling

1S The 1S is the first version of the S-series engine. It is a member of Toyota's Lasre engine family (Lightweight Advanced Super Response Engine). Bore and stroke are 80.5 x 90.0 mm. The engine was first seen in 1981, and was fitted to a wide range of Toyotas, in both RWD and FWD applications.

1S (1S-U) Original 1S engine, designed for longitudinal, rear-wheel-drive applications. Designated 1S-U with Japanese emissions controls.

Production: June 1981 — June 1988 Displacement: 1832 cc Mounting: longitudinal Type: SOHC 8-valve Bore/stroke: 80.5 × 89.9 mm Compression ratio: 9.1 Outputs: at 5,400 rpm / at 3,400 rpm Applications: Toyota Celica (SA60) Toyota Carina (SA60) Toyota Corona (ST140) Toyota Mark II (SX70)

1S-L (1S-LU) Adaption of the 1S engine, designed for transverse, front-wheel-drive applications. Designated 1S-LU with Japanese emissions controls.

Production: March 1982 — August 1983 Displacement: 1832 cc Mounting: transverse Type: SOHC 8-valve Bore/stroke: 80.5 × 89.9 mm Compression ratio: 9.1 Outputs: at 5,400 rpm / at 3,400 rpm Applications: Toyota Camry/Vista (SV10) Toyota Corona (ST150)

1S-iL (1S-iLU; 1S-i) Adaption of the 1S-L engine, with added central injection (Ci). Designated 1S-iLU with Japanese emissions controls.

Later versions renamed 1S-i. Sometimes labelled 1S-Ci in marketing material.

Production: September 1983 — April 1988 Displacement: 1832 cc Mounting: transverse Type: SOHC 8-valve, central injection Bore/stroke: 80.5 × 89.9 mm Compression ratio: 9.1 Outputs: at 5,200 rpm / at 3,000 rpm at 5,400 rpm / at 3,000 rpm at 5,400 rpm / at 3,000 rpm Applications: Toyota Camry/Vista (SV10) Toyota Camry/Vista (SV20) Toyota Corona (ST150)

1S-EL (1S-ELU; 1S-E) Adaption of the 1S-L engine, with added multiport fuel injection. Designated 1S-ELU with Japanese emissions controls.

Later versions renamed 1S-E.

Production: September 1983 — April 1988 Displacement: 1832 cc Mounting: transverse Type: SOHC 8-valve, multipoint fuel injection Bore/stroke: 80.5 × 89.9 mm Compression ratio: 9.1 Outputs: at 5,400 rpm / at 4000 rpm Applications: Toyota Corona (ST150)

2S The 2S is a four-cylinder engine with an iron block and an alloy head. Bore and stroke are 84.0 x 90.0 mm. This was to be the last of the S engine family not to be equipped with double overhead camshafts.

The 2S (with no extra letters at the end) is carburetted.

2S-C The 2S-C is the same as the 2S except it has US emissions controls.

It was used in the Australian delivered SA63 Celica (replacing the 21R-C powered RA60), and ST141 Corona.

2S-E, 2S-EL, 2S-ELU, 2S-ELC The 2S-E is the same as the 2S except it uses EFI. This particular engine was used in the Camry and in the Celica ST161. It was fitted with hydraulic lash adjusters.

The 2S-EL, 2S-ELU and 2S-ELC are the same as the 2S-E except they are transversely mounted (as fitted to the V10 Camry). The 2S-ELU has Japanese emission controls and the 2S-ELC has US emission controls.

3S The 3S is a inline-four engine with an iron block and an alloy head. Similar to the 2S engine, the bore was increased to 86.0 mm and the stroke was reduced to 86.0 mm, allowing for the fitment of larger valves and enabling higher power outputs. First introduced in May 1984, the 3S remained in production until 2007.

3S-FC Two-barrel carburettor version of the 3S-FE. This engine is found in lower-specification variants of the 1986–1992 Toyota Camry and its Holden Apollo twin (SL and SLX versions). Power is at 5,600 rpm, with max torque of at 3,200 rpm.

3S-FE

The Toyota 3S-FE is a 16-valve 2.0 L twin camshaft, single cam gear engine built by Toyota from 1986 to 2000. European version produces at 7,900 rpm and 179 Nm (132 ft-lb) at 4,400 rpm without a catalytic converter; with, maximum power is . It is commonly used in the Camry 1987–1992 model, the Celica T160/T180/T200, Carina 1987–1992, Carina 1988–2001, Caldina 1992–2002, Carina ED 1985–1998 and Carina E 1993–1998 models, Corona T170/T190 as well as Avensis 1997–2000 models and RAV4, 1994–2000, Picnic/Ipsum 1996–2002 and Comfort 2001–2007. The 3S-FE was also used in some MR2 Mk2 cars due to its torque band being suitable for the automatic models. The 3S-FE is fitted with EFI. The 3S-FE engine is fitted with a cast iron crankshaft, whereas the 3S-GE/GELU engines have forged crankshafts.

The 3S-FSE was a direct injection engine with Toyota D4 system. A cam driven high pressure fuel pump is at the #4 end of the head. This engine was only released in Japan, and installed in the Camry (Windom).

3S-GE The Toyota 3S-GE (originally titled 3S-GELU in transversely-mounted applications with Japanese emission controls), is an in-line 4 cylinder engine in the S engine family, manufactured by Toyota and designed in conjunction with Yamaha. While the block is iron, the cylinder head is made of aluminium alloy. The pent-roof combustion chambers are complemented by a cross-flow intake and exhaust layout. The spark plug is located in the center of the combustion chamber. The firing order is 1-3-4-2, with cylinder number 1 adjacent to the timing belt. The 3S-GE was designed to be light, the first iteration 3S-GELU weighing in at a low .

The forged crankshaft, located within the crankcase, rotates on five aluminium alloy bearings and is balanced by eight weights. Oil holes are located in the middle of the crankshaft to provide oil to the connecting rods, bearing, pistons and other moving components. The intake manifold has four independent ports and benefits from inertia build up to improve engine torque at low and medium speeds.

A single timing belt drives the intake and exhaust camshaft. The cam journals are supported on five points between the valve lifters of each cylinder and on the front of the cylinder head, and are lubricated by an oiler port located in the middle of the camshaft.

The pistons are made from an aluminium alloy, designed to withstand high temperatures. An indentation is incorporated into the piston head to prevent the pistons from hitting the valves, should the timing belt break (this is not true of the later BEAMS - an acronym which stands for Breakthrough Engine with Advanced Mechanism System - motors). This is commonly referred to as a "non-interference" engine. Piston pins holding the pistons in place are locked by snap rings. The "Outer Shim Type System" allows for the replacement of the shims without the need to remove the camshaft. To adjust the valve clearance, adjust the shims above the valve lifters.