baisicaly I'm rebuilding a used engine I have, apparently it was mechanically sound and it doesn't look like there was anything wrong with it on the inside but I plan on replaceing all the bearings, piston rings and valve springs ect

this is what I have, one of the old pistons and rod just to look at,

as you can see there, is that a bearing in the small end of the rod ? and can it be removed and replaced?
and it's soon to be going into mine because my small ends are tapping,
also welcoming advice on rebuilding an engine as I haven't done it before