AMD20IL4 - 20cc in-line four cylinder i/c engine

AMD20IL4 – 20cc in-line four cylinder i/c engine


The AMD20IL4 is a 20cc in-line four cylinder four-stroke miniature internal combustion engine.  It is a multi-cylinder version of the AMD5S, with which it has many common components.


  • Single- and double overhead camshaft variants, with timing belt
  • Air- and water-cooled variants
  • Designed for petrol or glow-fuel
  • Bore – 19mm
  • Stroke – 18mm
  • Compression ratio – 10:1
  • Gear-type oil pump
  • Gear-type water pump (water cooled version only, obviously)
  • No castings required, machined from solid.


Not yet available.


Purchase Drawings

I plan to make drawings and illustrated construction notes available for sale in due course.  Please contact me to register your interest.