^ there are three types of engines that came in eclipse and talons. The 4G63T which is the mitsu made engine. The 420a which is a chrysler made engine, and the spyders came with a 4G64 single cam non-turbo. You said you have a GST tranny in your car as well as a 420a engine??? I don't think that is possible.... And what he meant when he said its not a direct bolt on. The 4G63 WILL NOT go into a non-turbo eclipse or talon that has a 420a installed without having the mounts on the frame modified, its oppositely set-up. If you can spend that amount of money, look into an EVO 8 engine that is setup the same as a 420a and you can save yourself from cutting up your car and save money.