Probably answered this one a million times but i am just trying to learn as much as possible. got my first superjet and it just took over my life. Best investment ever. I am trying to learn as much as possible about all the mod enine parts. Can u guys explain to me what is a stroker engine and what do different mm notations mean. Also for all the bigger cylnders like 760 and 900 and up do you use the same crank case? thank you.