Got a Camera
Here is a picture
I will look up the expansion of steel and Cast Iron

My next step before I fly it will be to machine the crankcase a bit truer and lighten the rod up near the piston pin as its too thick , I might check the inlet timing and see if I can make it similar to the Fora Junior timing , Make an exhaust collector ring, grind some weight off the top of the cylinder Machine down the spraybar to get a bit more airflow , Smaller prop as the piston is quite light, it will rev


Its not as lively as my first Silver Swallow 1.75 cc engine , it needs a stroker crank with lots of weights in to match that one