Polaris Sportsman 01 Sportsman 400-Camshaft Question August 7, 2015 Hello This is my first post here and I had a question or wanted a verification about replacing my 400 camshaft with a 500 HO cam. Can I just replace the camshaft and exhaust rocker? thanks for any replies Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related