Yes, you can. A friend of mine just swapped out auto engine for a maunal. It costs him about $5000. Many parts have to be modified like engine mounts, cooling systems, all hoses and pipe lines and whatever needed to make it works. I saw the car and it's not worth swapping(too much $$$). If you want a Honda with stick shift, sell the automatic one and buy one with manual transmission. I think it's cheaper this way.