wow 
that looks worse than when my tractor ran out of oil.........10mins after i bought it
there was an 1/8 inch of play in one of the rods, fortunatly the bearings took most of the abuse and i only had to replace them and the crank. grenading a piston and all is a whole other level. i would clean it up and check the block over then. unless you have another engine laying around for parts its probubly more than its worth to fix it.....unless you were going to upgrade everything anyway;p
that looks worse than when my tractor ran out of oil.........10mins after i bought it there was an 1/8 inch of play in one of the rods, fortunatly the bearings took most of the abuse and i only had to replace them and the crank. grenading a piston and all is a whole other level. i would clean it up and check the block over then. unless you have another engine laying around for parts its probubly more than its worth to fix it.....unless you were going to upgrade everything anyway;p
