Massey Ferguson C 50. The issue? Rain water went in through the upright muffler, went into the head and froze a piston. Mechanic took it all apart but damaged 1 piston. One piston needs to be replaced and the other pistons removed. The head has been rebuilt at machine shop. I have the new gaskets. Needs to be put back together. I have the parts. Asking $3800.00 reach by text.