TOYOTA Engines
A write-up on the common TOYOTA engines up to 2000.
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R Engine
K Engine
The K series was produced from 1966 to 2007. The K series was designed for the introduction of the Corolla. They were a pushrod 2-valve aluminium head, cast iron head engine. They are a slant four design with an angle of 30o.
1K
The 1K was the first iteration made from 1966 to 1970.| 1K Engine | |
|---|---|
| Displacement | 1077cc (1.1L) |
| Bore | 71.00mm |
| Stroke | 61.00mm |
| Block material | Cast Iron |
| Head material | Aluminium |
| OHV pushrod | |
| Firing order | 1-3-4-2 |
| Fuel | Petrol |
| Cooling | Water cooled |
| Power | 45PS (33kW, 44hp) |
| Torque | 7kg*m (66Nm, 49lb*ft) |
There were two verisons of the 1K motor:
1K and 1K-B. The 1K-B was a higher power version sporting twin carburettors.
| Comparison of 1K vs 1K-B | ||
|---|---|---|
| 1K | 1K-B | |
| Power | 45PS (33kW, 44hp) | 73PS (54kW, 72hp) |
| Torque | 7kg*m (66Nm, 49lb*ft) | 15kg*m (147Nm, 108lb*ft) |
The 1K was used in:
Toyota Corolla KE10, KE15, KE16
Toyota Publica KP30-S
2K Engine
The 2K engine was the second iteration between the 1K and the 3K. The 2K was pretty gutless and therefore not used very much.| 2K Engine | |
|---|---|
| Displacement | 993cc (1.0L) |
| Bore | 72.00mm |
| Stroke | 61.00mm |
| Block material | Cast Iron |
| Head material | Aluminium |
| OHV pushrod | |
| Firing order | 1-3-4-2 |
| Fuel | Petrol |
| Cooling | Water cooled |
| Power | 45PS (33kW, 44hp) |
| Torque | 7kg*m (66Nm, 49lb*ft) |
The 2K was used in:
Toyota Publica KP30, KP36, KP39
Toyota Starlet KP40, KP60
3K Engine
The 3K was one of the more common K engines out there. The 3K was produced from 1969 to 1977
| 3K Engine | |
|---|---|
| Displacement | 1166cc (1.2L) |
| Bore | 75.00mm |
| Stroke | 66.00mm |
| Block material | Cast Iron |
| Head material | Aluminium |
| OHV pushrod | |
| Firing order | 1-3-4-2 |
| Fuel | Petrol |
| Cooling | Water cooled |
| Power | 67PS (50kW, 67hp) |
| Torque | 9.5kg*m (93Nm, 69lb*ft) |
There were seven main versions of the 3K engine
- 3K - Basic version
- 3K-C - Comply with Californial emissions standards
- 3K-H - High octane
- 3K-D - High compression
- 3K-B - Twin carburettors
- 3K-U - Comply with Japanese emission standards
- 3K-R - TRD / TOSCO Race engine
| Comparison of 3K motors | |||||||
|---|---|---|---|---|---|---|---|
| 3K | 3K-C | 3K-B | 3K-H | 3K-D | 3K-U | 3K-R | |
| Power | 68PS (50kW, 67hp) | 59PS (43kW, 58hp) | 77PS (57kW, 76hp) | 71PS (52kW, 70hp) | 73PS (54kW, 72hp) | 64PS (67kW, 63hp) | 183PS (135kW, 180hp) |
| Torque | 9.5kg*m (93Nm, 69lb*ft) | 8.7kg*m (85Nm, 63lb*ft) | 9.6kg*m (94Nm, 69lb*ft) | 9.7kg*m (95Nm, 70lb*ft) | 9.6kg*m (94Nm, 69lb*ft) | 9.2kg*m (90Nm, 67lb*ft) | 19.6kg*m (192Nm, 142lb*ft) |
| CR | 9.0:1 | 9.0:1 | 10.0:1 | 9.0:1 | 10.0:1 | 9.0:1 | 13.0:1 |
The 3K-R is a special one. It was a TRD built and developed version for Tom's racing. It was put in a KP47 starlet and won the 5th race at Fuji in 1975. There were only 25 of these engines ever produced.
The 3K was used in:
Toyota Corolla KE11, KE17, KE18, KE20, KE25, KE36, KE30, KE35, KE36, KE38
Toyota Starlet KP62
Toyota LiteAce KM10
Toyota TownAce KR10
4K Engine
The 4K is the most popular of the K series. The 4K was produced from 1977 to 1989
| 4K Engine | |
|---|---|
| Displacement | 1290cc (1.3L) |
| Bore | 75.00mm |
| Stroke | 73.00mm |
| Block material | Cast Iron |
| Head material | Aluminium |
| OHV pushrod | |
| Firing order | 1-3-4-2 |
| Fuel | Petrol |
| Cooling | Water cooled |
| Power | 59PS (43kW, 58hp) |
| Torque | 9.9kg*m (97Nm, 72lb*ft) |
There were four variants of the 4K:
- 4K - Standard
- 4K-C - Complies with Californian emissions standards
- 4K-E - EFI equipped
- 4K-U - Complies with Japanese emissions standards
| Comparison of 4K motors | ||||
|---|---|---|---|---|
| 4K | 4K-C | 4K-E | 4K-U | |
| Power | 59PS (43kW, 58hp) | 59PS (43kW, 58hp) | 59PS (43kW, 58hp) | 75PS (55kW, 74hp) |
| Torque | 9.9kg*m (97Nm, 72lb*ft) | 9.2kg*m (90Nm, 67lb*ft) | 10.2kg*m (100Nm, 74lb*ft) | 10.7kg*m (105Nm, 77lb*ft) |
The 4K was used in:
Toyota Corolla KE50, KE55, KE70
Toyota LiteAce KM10, KM20
Toyota TownAce KR10 (Feb. 1978), KR20
Toyota Starlet KP61