I had a set of h22 type s rods as well but i changed it up and decided to go with the f22 crank and rod setup. Does anything different need to be done when putting the h22 type s piston on the f22 rod since it is a free floating setup.

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It's the same deal as putting them on pressed pin rods from a H22 or H23. Some people have bushings installed, some just run steel on steel. I've not heard of problems either way. Personally, if you're going the floating on steel route, I'd polish out the rod ends a bit after the old pins are pressed out.