I have a question, will type s pistons work on a h22a block? I'm not sure if you covered it or not sorry if you have. Also what valves and valve springs are best to put into a h22a block? If I want to go to turbo how should I prepare my block? If I wanted to go turbo would h23 block and h22a head go good? Or should I just stick with the h22a block? I was going to start a new thread but I saw this thread. Thanks guys.