Im new to the forum and in need of some help, my grandmas car is a 04 kia optima and has the 4 cylinder motor in it. Her motor locked up and she is in need of another motor. And there is a guy that has a motor out a hyundai sonata and says it will work. Its got 130k miles on it and he is letting me have it for 300. Will these motors work in the optima? I know the body style of the car look similar.