I've donde 10+ swaps but i've never taken a motor a part .
Heres the deal , i bought a motor set
Rb25det series 1, i did a compression test and i got this numbers. 150 135 145 150 150 150
So i went ahead and decided to replace all gaskets ,including headgasket , new timing belt , water and oil pump.
Today i removed the head and this is how it looks like.

This is how the bottom of the head looks
Walls dont look scratch but top of the pistons and end of the wall look really dirty , is this normal or should i replaced my bottom end parts too?