you could try HPP5074 at Cvtech...most of their hpp line of pistons are snow-x.....ditto on the SPI pistons! I have had problems with Wiesco pistons in the fix kit! In my last three top ends, I used just the SPI stock pistons and on one of those I took out the fix kit plate and went back to stock SPI pistons and those are still running great. If I can't convince the owner to use OEM polaris pistons, then I recommend SPI. I used Sno-X pistons for many years and the last time I ordered and received pistons from Sno-X, I got SPI, so I just cut the middleman.
gtwitch in wyoming
I have installed a lot of stock pistons. They are ok except the skirts collapse. This is a verifiable dimension which can be measured. I have never been a real fan of the spacer plates however if it has worked for you it cant be all bad. I have been using the RK TEK Wiseco pistons and have not had any issues/failures at all. Simple solution.Shims are not needed. Go with a stock piston setup.