Valve spring compressor

I like it a lot. It works very well. You just have to keep the tool properly placed on the retainer and take note while you compress the spring. The spring /retainer does t always go directly straight down. It can catch the valve tip or the side of the valves little rough if your not careful. Not that I damaged anything yet, but it could if you went gorilla and not looked. I recommend this item if your not going to make your own. There are available for big and small blocks.