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-   -   Engine Head Work (https://www.hondacivicforum.com/forum/engine-internal-11/engine-head-work-71357/)

rags2richs 11-10-2008 07:06 PM

Engine Head Work
 
I am looking at buying a head for my 97 civic EX, the head has crower titanium valves and springs, and unorthodox adjustable gears. I would like to get it ported and bored but im not sure how much I should have it done, could you guys help me out. Also the guy was suggesting I have it polished, what exactly is polished and what does it do, also would I need to have my car taken to a dyno shop after these upgrades.

riceburner700 11-10-2008 07:38 PM

what kind of bottom end do you have is it stock? built? semi built?

ej6buddy 11-10-2008 07:45 PM


Originally Posted by rags2richs (Post 603356)
what exactly is polished and what does it do, also would I need to have my car taken to a dyno shop after these upgrades.

http://www.sa-motorsports.com/diyport.aspx

when you add/remove more air into the cylinder head, you need more fuel to compensate, so yes, it should be tuned in the end to have any gains.

rags2richs 11-11-2008 01:54 PM

My bottom end is bone stock, what kind of power gains might i expect from a head job.

riceburner700 11-11-2008 04:25 PM

anywhere from 5hp-25hp depending on the supporting mods. that bottom end you will only be able to get so far


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