• Valach VM 120 I2-4T Inline
  • Valach VM 120 I2-4T Inline
  • Valach VM 120 I2-4T Inline
  • Valach VM 120 I2-4T Inline
  • Valach VM 120 I2-4T Inline
  • Valach VM 120 I2-4T Inline
  • Valach VM 120 I2-4T Inline

Valach VM 120 I2-4T Inline


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Valach 120cc inline twin cylinder gas 4stroke engine with electronic ignition

Make sure to research the recommended accessories at


    Capacity:  120 cc
    Bore:  47 mm
    Stroke:  35 mm
    Height to crankshaft center:  154 mm
    Length from engine mount to prop hub:  245.5 mm
    Engine weight: 4660 g
    including ignition:  4855 g
    Ignition voltage range:  4.8 - 9 V
    Fiala Prop 2-blade: 30x12", 30x14", 32x12"


 Click for Dimensions


 Due to customer request allow me to share with you some essentials that I personally recommend purchasing with your Valach engine.

Valach, just like 3W, Desert Aircraft and many other leading manufacturers of engines, do not supply an exhaust solution. Hence I recommend that you order one with your motor, to be found under Valach Exhaust Solutions on this site.

4-stroke gas engines do run on pre-mix oil lubrication. Said oil will be expelled through a drain on the back plate of the motor. Should you want to avoid a dirty airframe I recommend getting our oil catch system, to be found under accessories.

Furthermore I recommend getting the feeler gauge blade set, an ignition battery from us (we have two technologies available) and our external APS fuel pump for those who want the added safety of redundancy.


And last, a very important pointer: Valach motors were designed with Fiala props in mind. Should you want to run the  shown pitch and diameter recommendations you WILL need to run a Fiala prop. Should you want to run props of a different brand you will most likely have to drop 2 in pitch due to Fiala's unique airfoil choice. Other brands plain run at a higher drag rate.





80 LBS airplane:



Capacity    120cc
Bore    47 mm
Stroke    35 mm
Height from prop shaft or diameter on radial and twin    6 inches
Length mount to hub    9.65 inches
Weight    4855 gram
Fiala range 2 blade    28*14 - 32*14

Very convenient to have as the Valach does not come with preinstalled throttle and choke horn: