2001 blew top off radiator and overheated. Replaced radiator and started up after i held pedal to floor. Then it puffed white smoke and a 8 inch crack opened on drivers side of block. Soooo i got a wrecked 98 and pulled engine. The harness from intake with injectors and temp plugs did not match up. So i unplugged each injector and swapped harrness. I niticed that 2001 engine has 2 orange 2 greeh injectors and plugs. 98 engine in 2001 chassis seems to miss at low rpms and catyitic very hot l... though engins runs cool. And wqter drips from tail pipe. No smoke or smell. I let run for 45 min. And had no water loss. And temp gauge never reached halfway. Thougu electric fan did come on.