I got a free d15z1 engine from my bro, I was wondering is there anything i can do to the block, I was planning on taking it apart and building it up with jdm d15b pistons and other stuff

you guys think its worth it?

 

IMO, it will be a great learning experience if you have never taken a block apart. What the hell, go for it, if you got it for free and go the d15b pistons, might as well.