Hey everyone, i have a 99' Si with a stock B16 and the head seems like it needs a rebuild, or maybe valve seal replacement, I did A compression check on the motor and it was decent but it burns oil in vtec and I was just wonderin if I do a port and polish and replace the valve seals will I see a performance increase w/ stock cams and cam gears?..................from what im told the B16 is the best flowing head and I just want to be able to feel vtec hit a lil harder any help would be appreciated

 

bump weasel has occured.

bumpin your mom in the trunk.

no seriously, someone answer this.

 

If you're using all stock components, the difference after a port and polish would be modest at best. Upgrading springs and cams on a stock port head will give a much bigger kick than the p and p.

 

Replaced valve seals will only stop any smoking from worn seals - so only a power rejuvination, not increase. Most porting will do very little in such a head, esp with a stock cam.

Best increase you can do is get a CTR or ITR cam combo. It's a good idea to get the appropriate springs too. W/o tuning or other mods, it's mostly the extra noise that will be noticable - they are very loud with a short intake. Otherwise a GSR cam set can be had for as low as ~$50 used. They tend to give a modest power increase.

 

so if i replace the valve seals and cam seals, but I dont port/polish the head, I will just have a rejuvination of power....basically back to stock, correct? (because at this point, I am just lookin to stop the oil burnin in vtec and keep the stock power band, until i can save up for boost and a different motor) thanks