I've been using KB pistons and have had good luck with them. But don't ask for anything other than what THEY want you to have. I messaged tech support to ask a couple of questions. 1-Are there any plans to offer a piston for the 360 AMC (probably one of the most popular AMC engines). Answer- NO plans to offer a piston for the 360 are on the production schedule which covers approximately two years! 2- I am currently making high compression 22rToyota pistons by cutting the tops to remove the dish. Then I deck the block to get the deck height back. Could they just sell the Toyota piston WITHOUT the dish as a high compression piece? All they would have to do is NOT DISH THE PISTON. They wouldn't have to do anything special. In fact all they would have to do is NOT perform one of the machining operations. In fact with just a small change in the bore size this piston will fit the 2.6 Mitsubishi. So with just a few MINOR changes they could turn one piston (they are ALREADY making) fit SEVERAL new applications! Answer-We don't make custom pieces. They are available off the shelf only. SO,,,,, Don't look for ANY help with any problems from Silvolite (Keith Black). They are NOT interested. Rant off.... Bruce Hevner