my freind is fixing to buy a 04 corba for 19k, but the car has 33k on the odo. theres one problem the engin smokes a little, but it has plenty of oil pressure, dosent knock, and it idles smooth. i think it needs to be reringed and i just want to know how much it is going to be. but is the 03-04 cobra motor have the same issues when you take them apart, like do you have to get new head bolts, rods, ect?