Wouldn`t a longer rod that still has a stable piston be better for friction tho? I gotta admit I have never built or researched a 470, and don`t know what combinations there are for them, just asking.
Maybe, but I doubt you would ever notice the difference. For an engine like this you want to stick with catalog parts as much as possible otherwise the cost goes thru the roof. When you stick with catalog parts you only have so many choices for parts.
