I've checked out alot of the engine swap threads and now I'm just going to ask everyone personally what they think would give me the most power. I have an EJ civic I want to know what swap will give me the most power at at the same time pass smog, Im looking at the GSR B18C1 and the H22a, I plan to supercharge the engine, not right away but eventually. Im not as worried about top speed as I am concerned about getting the best accelleration I can get, thanks for your help in advance.

 

GSR sounds nice. I would turbo charge it instead of a supercharger, you will be more happy with the turbo results. If you want to go all motor then i would get the b18c5 Type R.
There is my opinion but still read more and search more because there is a TON on this topic

 

k20 :-D