Thread: polish and port

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you dont want to polish anything on the intake....unless its the outside?? You polish the exhaust.

thanks big truck. that clears it up for me.

Unless your talking 1500hp plus with 30 lbs of boost.....

oh how i wish

That intake manifold is most likely ok . It's if your head ports look like this . Then they need the intake gasket match porting .

Check out a book from SA Design, titled "how to build max performance chevy smallblocks on a budget". It's written by David Vizard, and has some good info on porting & polishing.

I got mine at a book store, but it's also available at cartechbooks.com.

Adam

Here's a couple pictures of basic port work. The intake and heads were matched to the gasket and the ports smoothed out some (but not polished) back into the manifold and head ports.

I also polished the outside of my intake and will never do that again. Buying one factory polished is a great investment IMO.

Kitz