OK having a 2.2 L engine and you’re putting a 2.4 L crankshaft in it the issue isn’t the counterweight hitting the piston is the reluctor wheel for your crankshaft which really you just need one piston on that back number four cylinder but you also need the 82172.4 L crankshaft rods your original Pistons will work except the number forth one but you can grind it down yourself to make it have clearance

 

Is that crank shaft rod , the connecting rod part # or casting #