I am looking for a shop in orange county that does general motor swaps with the used japanese motors. My girl has a 98 nissan altima and she wants to get the motor changed. It has alot of miles and we tried to fix a timing chain rattle but it didnt go away once we changed the chain guides that broke. Since most places want to charge a grip to check and fix it,we were thinkin of swapping the motor out,since she does plan on keeping it longer. Any recommendations??