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Author Topic: Head Porting tutorial  (Read 1918 times)

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Offline Johnny5

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Head Porting tutorial
« on: July 22, 2009, 01:42:21 PM »
I have a spare CB750 head that I'd like to try and port for practice. Does anyone know of a decent tutorial (specifically for the 750) for this?

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Offline Bob Wessner

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Re: Head Porting tutorial
« Reply #1 on: July 22, 2009, 01:53:58 PM »
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Offline MCRider

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Re: Head Porting tutorial
« Reply #2 on: July 22, 2009, 02:21:36 PM »
Quote from: Bob Wessner on July 22, 2009, 01:53:58 PM
Some info., can't vouch for it though.

http://cb750k2.tripod.com/Technical/porting/Porting_the_Honda_Head.htm

As far as anyhting in print, that's the holy grail. Branch did a Hemi on the combustion chambers and that is no longer the standard fare. Most machinists will now leave a substantial part of the swirl castings in the chambers.

But the parts about the ports are still current I think. And its mostly the intakes that need the work. Not so much on the exhausts.
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