I realize you have the pistons already. But for others, there are some soon to be discontinued choices still available. These are variations of the H116cp piston (which is the most expensive of these) There is a H116CPX also and a H116CPY. The differences are the compression distances. The H116CP is the tallest the H116CPY in the middle and the H116CPX the shortest. But the "X" and "Y" are much cheaper!