Thought I would post up some pics of my valve spring compressor I made. I was trying to find something that would allow most of the valvetrain to be removed with the head still on the block or without having something on the bottom of the valve. There have been a few designs similar, but nothing for the 420a that I could find. This one gets the job done. Lemme know what you guys think or if anyone is interested in these. It work extremely well. The pics have an srt-4 sticker on it, but it's exactly the same for both motors.