Use a table ban saw to hack off the 340 piston crown .

Still dislike paying machine shops, and there's nothing wrong with fitting parts together that cost way less than the main stream media advertises at...and I remind everyone, I haven't /won't assemble an engine with 7.5cr-8.5cr or one with 10.8cr( Aluminium heads limit cr) or higher. And when all is said and done, I will have the correct amount of weight that was added or removed (heavy metal)(size of holes drilled) and there location. Yes, the machine shop I will use is out in the "sticks" and they are not swamped with work, and they will get me balanced with precise info for my crank/rod/piston combo....so next time,with the same combo, I will do the balanceing.!! No cost...seems that kind of info is top secrect among all you "professionals"....or maybe no one wishes to share. Either way , I will have gotten what I need for future builds, no thanks to the "know it all" heklers. Here.