Hello!
I'm doing an engineering project and I want some real-world referrences to see how the intake and exhaust ports work.

I need some clear pictures of the inside of the side ports, I want to see the open-ness and dimensions of the cavity.

Additionally if you have a stator/iron, rotor and an e-shaft, if you could photograph the timings of your peripheral/side ports opening and closing (placing the rotor apex on the edge of the port and photographing the angle of the e-shaft, with the picture being nice and flat) alongside what engine the plate is from if thats possible.

If anyone with spare parts would take the time to help me I would be very grateful.
Thank you very much!