No go on pistons for that kind of compression ratio. If you look at the chamber design the bulk of the volume is over the valves and not the pistons. I went with an Edgy head that has a more modern chamber design and is smaller to get you the 9:1 compression ratio. Unfortunately, I also got one of the last sets they made and there are no more new ones. I did see on on Ebay, used, for twice what I paid for my new one. The company that made that head is working on a more stealthy one, same chamber design inside, but looks stock outside whereas mine are finned. So you just deck the block for quench and run a better head. They also do cams.
http://www.moparmontana.comBut these guys are really the 218 cam gurus
https://p15-d24.com/blogs/entry/109-the-all-mighty-cam-flathead-style/Shot of my new cylinder head's chamber.
