I just bought a 2005 Civic SI, and I was actually pretty disappointed with it's performance. I was reading a few of my buddies magazines, and a big thing to do, I guess was swap the head of the K20a3 for the one off the rsx-s (k20a2), and I looked at the forums, and most people recommended doing the entire block. I wasn't planning on spending that much money, but if it's really worth it, I will. Is there anyway I can make up that 40hp with any other mods? say exhaust, headers, intake, and new cams? or should I look into the head swap? Please help.

Josh

 

You could put new cams, pistons, polish your ports, and put new valves in it, but what i would do is buy the k-20a2 block and do all the things i listed to it.Then you will have a serious engine under your hood.

 

I would go for the swap.

 

brand new car and ure already gonna swap the engine?

 

well why would u want something that ugly to start with? might as well make it a little fast..

swap, changing out pistons and such would be stupid with a new motor

 

Get a K20A head swap from an '01-'02 JDM RSX (Teg) Type R/'02 JDM CTR. That'll put you close to 220 hp/160 tq, as well as 11.5 CR. Or just try and find a full swap with the 6 speed LSD tranny.

 

Have you considered NOS? If you are planning on swapping the motor anyway, maybe you could do an experiment for us to see how much punishment the stock motor will take

 

well since its brand new im sure it could handle all the nitrous u could throw at it

 

Do this.

http://tech.hybridgarage.com/tech/7gtech/7g-swap.htm

 

like yea dude use NOS.











****in ricers