Why are you talking about the piston skirt? That's not what I'm asking about.

Here is what the piston and sleeve look like. You can see the hole in the side of the piston, which aligns with the main transfer port. The piston is oriented correctly inside the sleeve.



Here you can see there is no channel in the block for the main transfer port.





This means all of the airflow through the main transfer port passes through the inside of the piston. So my question is: Does this extra airflow through the piston keep the piston cooler? I'm not asking about the temperature of the entire engine, only the temperature of the piston. All I care about is whether the piston is remaining cool enough that it won't get damaged, even if the temperature of the entire engine is higher than normal.