2g cylinder head port question

[jjrock5]

So i think I may have made a mistake....not cool. I sent my 2g head to the machine shop to get cleaned up. While I was waiting I decided to port(gasket match) the exhaust mani. I was under the impression that whenI got the head back I was going to gasket match the head(exhaust side) as well. Now Im reading that you DONT want to port the head at all, you just want to clean it up a little bit. Sooo, that leaves me with a mani that is fully gasket matched and the head which is not. So now the head exits from a smaller area to the mani, which now has a significant amount larger area opening. Will this hurt the flow in any way?

Heres a pic of the gasket against the head so basically my mani ports are as big as the holes on the gasket...you can see the difference.

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[Zex4g63]

Don't gasket match the exhaust side of the head. Leave it be it will be fine and flow will not be effected. And if that's what the machine calls clean....I'd find a new one.

 

[jjrock5]

I completely agree in the head cleaning. I payed 25 bucks to get it cleaned and it is way cleaner but it still had some crud on it.

Im glad to hear about the porting though. Thank you.