4G63 Engine

Mitsubishi 4G63 2.0 L engine


The most famous, popular and iconic representative of a Mitsubishi Sirius 4G6 series (in the family entered 4G63T, 4G61, 4G62, 4G64, 4G67, 4G69, 4D65 and 4D68) appeared in 1981 a nd replaced the past inline four-cylinder engine 4G52. It is based on a cast-iron cylinder block with two balancing shafts, covered with a simple single-shaft cylinder head with valves 8, which was later replaced by a more modern 16 valve SOHC with the same configuration, and has been applied and the 16 valve DOHC since 1987. These heads were equipped with hydraulic lifter and valves do not require adjustment.


The diameter of the inlet valves is 33 mm, and 29 mm outlet.

The average life of timing belt belt is about 90 thousands km.

In parallel with the atmospheric engine, since the 1988, company produced a turbocharged engine and the most famous Mitsubishi engine – 4G63T, namely turbo version in the majority of enthusiasts associated with the name of 4G63.

Issue of the two-liter Sirius continues to this day by third-party manufacturers by the Mitsubishi license. The company itself as the Japanese company has replaced the engine for the next generation of 2 liters – 4B11 engine.

Mitsubishi 4G63 Specs

The breakdown of the engine code is as follows:

  • CA – Engine Family
  • 18 – 1.8 Liter Displacement
  • D – DOCH (Dual Overhead Camshafts)
  • E – Multi Point Fuel Injection
Manufacturer Shenyang Aerospace Mitsubishi Motors Engine Manufacturing Co Ltd
Mizushima Plant
Production 1981-nowadays
Construction Aluminium Head
Type In-line OHV, SOHC
Cam Timing MIVEC intake
Number of cylinders 4
Combustion chamber Pentroof type
Total displacement dm3 1,997
Cylinder bore mm 85.0
Piston stroke mm 88.0
Compression ratio 10
Valve timing Intake valve:

  • Opens (BTDC) – 18
  • Closes (ABDC) – 58

Exhaust valve:

  • Opens (BBDC) – 58
  • Closes (ATDC) – 18
Power output h.p at rpm 109/5500
Lubrication system Pressure feed, full-flow filtration
Oil pump type Involute gear type
Auto-tensioner rod projection length mm 12
Camshaft journal outer diameter mm 45
Valve face angle mm 45 degree – 45.5 degree
Valve seat valve contact width mm 0.9 – 1.3
Piston outer diameter mm 85.0
Oil consumption , L/1000 km
(qt. per miles)
up to 1.0
(1 qt. per 750 miles)
Recommended engine oil 0W-40
Engine oil capacity, L 4.0
Oil change interval, km (miles) 7,000-10,000
Engine lifespan, km (miles)
– Official information
– Real

400,000+ (245,000+)

Tuning, HP
– Max HP
– No life span loss

4G63 engine modifications and generations

  1. 4G631 – version with one camshaft and 16 valves (SOHC 16V), the compression ratio – 10, with a capacity of 133 hp at 6000 rev / min, 176 Nm of torque at 4750 rev / min. It fits on Mitsubishi Galant E33, Chariot / Space Wagon and others.
  2. 4G632 – SOHC 16V, a compression ratio of 10, with a capacity of 137 hp at 6000 rev / min, 176 Nm of torque at 4750 rev / min. It fits on Mitsubishi Galant E55 and others.
  3. 4G633 – 8 valve version SOHC 8V, 9 compression ratio, capacity of 109 hp at 5500 rev / min, 159 Nm of torque at 4500 rev / min. It fits on Mitsubishi Galant E33, Chariot / Space Wagon and others.
  4. 4G635 – twin-shaft variation DOHC 16V, 9.8 compression ratio, with a capacity of 144 hp at 6500 rev / min, 170 Nm of torque at 5000 rev / min. It fits on Mitsubishi Galant E33, Eclipse and others.
  5. 4G636 – SOHC 16V, a compression ratio of 10, with a capacity of 133 hp at 6000 rev / min, 176 Nm of torque at 4750 rev / min. Fits on Mitsubishi Galant E33 / EA2A, Chariot / Space Wagon, RVR / Space Runner and others.
  6. 4G637 – DOHC 16V, the compression ratio of 10.5, with a capacity of 135 hp at 5750 rev / min, 176 Nm of torque at 4500 rev / min. Sets at 9 Mitsubishi Lancer, Outlander, and others.

4G63 Applications

Model Years Produced
Nissan Pulsar NX SE (USA and Canada)
Nissan EXA (Australia and Japan)
Nissan Skyline 1800I (HR31),(Japan) 1985-1991
Nissan Silvia (S13) 1989-1990
Nissan Sunny N13 (UK)
Nissan Sunny B12 Coupe (UK)
Nissan Bluebird T72 (UK)
Nissan Bluebird 1987-1989
Nissan Auster 1985-1990
Nissan EXA (Australia) 1988-1991


4G63 Engine problems

  1. The problem of balancing shafts c. At defective supply of lubricant on bearings of shaft, the risk of their chock and break of a belt of balancer shafts sharply increases that leads to a break of the timing belt with all its consequences. Solution: buy only high-quality oil, monitor the condition of the belts regularly and change it. Another option is to remove the balancer shafts.
  2. Engine Vibrations. The most common problem here is the wear of engine mountings (left-most). Check and replace.
  3. Turns of XX float. The main reasons: the injector, a temperature sensor, a dirty throttle control and idle. Check, wash and everything will work as it should.
  4. In addition, hydraulic lifter die quickly from low-quality oil lifters,  replace it every 50 thousand. Km. In general, timely service and good quality motor oil will provide trouble-free operation for a long time. Under these conditions, the average life of 4G63 is 300-400 and more thousand. Km. However, the turbo version is buying not for a peaceful movement, the motor is easy to tune, has a distinct sporty character and the owners take advantage of this, so that the resource is significantly reduced.

4G63 Turbo

4G63 engine turbo on Mitsubishi Lancer Evo IX:

  • Type – TD05HRA-16G6C-10.5T
  • Compressor inlet – 41.00 mm
  • Compressor inducer – 48.30 mm
  • Compressor exducer – 68.00 mm
  • Turbine wheel – 56.00 mm

4G63 Tuning and swap

The easiest and the most affordable way to increase the atmospheric 4G63 power is to put shafts. Our choice falls on camshafts with phase 264/264, we add the cold inlet, Exhaust as 4-2-1, and firmware. This allows the motor to increase its capacity on 15-20 hp.

For turbo tuning of the 4G63 you need to buy a connecting rod and piston group, liners, pan, head, head gasket, turbine, intercooler, intake manifold, rail, injectors, fuel pump, exhaust, ECU, engine mounts, everything from the Evolution, welded an exhaust manifold, assemble and set up, and eventually you obtain power as in EVO.

Alternatively, you can just buy the engine Mitsubishi RVR Turbo, with TD04 and swap it. But you must know that Evo engine won’t be established easely, – need improvement.

4G63 intake manifold and 4G63 exhaust manifold instruction you can find at 4g63 guide

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  1. […] 4D65 and 4D68) with a displacement of 2.4 liters has been designed on the basis of the two-liter 4G63 and the 4G54 came to replace. The height of the cast-iron cylinder block of the 4G63 was increased […]

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