i dont think they are going to bolt up. i believe something with the fuel delivery is different, also it went from a dual spark to a single, may have to swap out the ignition system then too. Its not as cookie cutter as the b-series engines. Even with puttin a gsr head on a ls block there is still some big work that needs to be done. and they are bboth 1.8's. they need to be machined alike and that costs big cash. I would guess if the head swap is possible it would cost over 5k to perform and your warranty.