You have to change over the rear engine mount bracket with yours, you can bolt your gearbox straight up, using your clutch and flywheel. The wiring would be a mission, and there isnt too much power advantage, would probably say it was worth it if you were putting R32 lump in there, same conversion principles, just more power out of the box. Think you swap over your coolant housing flange as well so you can keep your sensors.