pistons should not wear like you like you think here are some things that will work the skirts not breaking the edge at the bottom of the bore this cuts the skirt. no tq plating the block on some engines .runing the engine to hard with to small of clearances to the wall .over heating the engine. valve train parts washing in the oil geting on the shirts . je / ross/ mahley all make a fine piston and if you follow the what i out line you will be fine 200.000 on some thing your are racing? no the rpm is not the same as a stock engine but they should not just fall out