i have a 2004 aveo and the timing belt went and took out the valves. replaced them and all the gaskets put it back together and started it up and the timing belt slipped right away and this time ruined the head. i have called about 20 used parts places and found only 2 places that have them one place wants $450.00 for a used head and the other wants $250.00 for a head with bad valves. does anyone know if their is any other motor that would fit this car besides the aveo that might be easier to find they said that their is a shortage of this motor due to this problem. thanks