just took apart my brother top end..
the pistons bigger numer is 513m06650...
i dont think there wisco pistons and the rings are real loose
other then that the pistons look mint and bore seems to be good..
my local shop wants 90$ to do it and my brothers banshee will probally need to be done 1 over... and the banshee is 180 to do..... i rather ship them out..