I love a good forged piston however many 2t OEMs in many different applications are using cast these days, and I believe its not all about cost. Don't wanna start a cast vs forge debate but the forged pistons will expand faster and that could spell cold sieze issues. The new cast compositions these days have a lot more silicon in them, can run tighter tolerances and are cost effective. I think the blue coating is similar to what KTM uses and other piston makers use these days. Wiseco calls it 'armour-glide' or something fancy. Running tighter clearences has its advantages as does using similar alloys that heat at similar speeds. Having said all that I'd be a sucker 4 a dominant piston. I think starting with a press/vac test & some calibers may give some answers to a poor fella left scratching his edd.
