6A1x family

From Mitsipedia
6A13 Twin Turbo in an Eighth Generation Galant VR4
Manufacturer Mitsubishi Motors
Configuration V6
Cylinder block alloy Cast iron
Cylinder head alloy Aluminum alloy
Valvetrain SOHC/DOHC

The 6A1x family of engines are a series of 60 degree V6 engines. They use a cast iron block with aluminum alloy cylinder heads and overhead belt driven camshafts. All have fuel injection and are available in a variety of valvetrain configurations.


The 6A10 is a 1.6 litre V6 engine and is the smallest four-stroke V6 ever produced. It displaces 1597 cc using a 73.0 mm x 63.6 mm bore and stroke. The engine is only available in double overhead cam with 24 valve form. It produces 103 kW of power at 7000 rpm and 147 Nm of torque at 4500 rpm. It was used in overseas CC through CE Mirage and Lancer models.


The 6A11 is a 1.8 litre 24-valve single overhead cam V6 displacing 1829 cc. It uses a 75.0 mm x 69.0 mm bore and stroke. It produces 99 kW of power at 6000 rpm and 167 Nm of torque at 4500 rpm. It was used in overseas CC through CE Mirage and seventh generation Galant.


The 6A12 is a 2.0 litre V6 engine. It is available with both 24-valve single overhead cam and 24-valve double overhead cam configurations. Further variations include intercooled twin turbo and MIVEC on DOHC versions. All displace 1998 cc and have a 78.4 mm x 69.0 mm bore and stroke. Compression ratios also vary, being 9.5:1 for eary SOHC versions, 10.0:1 for late-model SOHC, DOHC and DOHC MIVEC versions and 8.5:1 for twin turbo versions.

Power and torque for each is:

  • SOHC: 107 kW @ 6000rpm/181 Nm @ 4000 rpm
  • DOHC: 132 kW @ 7000rpm/191 Nm @ 4000 rpm
  • DOHC with MIVEC: 147 kW @ 7500 rpm/200 Nm @ 6000 rpm
  • DOHC Twin Turbo: 177 kW @ 6000 rpm/308 Nm @ 3500 rpm

The SOHC version was used in the seventh generation Galant and first generation Diamante, the vanilla DOHC in the FTO, the MIVEC DOHC in the FTO and Galant VX-R and the twin turbo in the seventh generation Galant VR-4.


THe 6A13 is the largest of the 6A1x series. It is a 2.5 litre V6 engine with a displacement of 2498 cc. It utilises a 81.0 mm x 80.9 mm bore and stroke and is available in 24-valve single overhead cam and twin turbo double overhead cam specifications. The SOHC version uses a 9.5:1 compression ratio and produces 129 kW at 5500 rpm and 230 Nm at 4500 rpm. The DOHC twin turbo uses a compression ratio of 8.5:1 and produces 191 kW at 5500 rpm and 343 Nm at 4500 rpm.

The SOHC version was used in overseas eighth generation Galants and the second generation Diamante. The twin turbo DOHC was used in the eigth generation Galant VR-4.

3 cylinder
3A9x 3A90 3A91 3A92
4 cylinder
Neptune 4G41 4G42
Orion 4G11 4G12 4G13 4G15 4G17 4G18 4G19 G4ED
Sirius 4G61 4G62 4G63 4G64 4G67 4G69
Astron 4G51 4G52 4G53 4G54
Astron II Original Revised
Saturn 4G30 4G31 4G32 4G33 4G37
4G9x 4G91 4G92 4G93 4G94
4A9x 4A90 4A91 4A92
4B1x 4B10 4B11 4B11T 4B12
Inline 6
Saturn 6 6G34
6G7x 6G71 6G72 SOHC 12v 6G72 SOHC 24v 6G72 DOHC Early 6G74 Late 6G74 Ralliart 6G74 6G75
6A1x 6A10 6A11 6A12 6A13
6B3x 6B31
8A80 8A80