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What port volume for 422

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Old Nov 11, 2002 | 06:18 PM
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Default What port volume for 422

Any suggestions on what kind of port volume numbers are good enough for a 422 LS1 ?
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Old Nov 11, 2002 | 07:02 PM
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Default Re: What port volume for 422

how fast do you want to run it?
What kind of power?
How much flow?

Those all mean alot

Bret
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Old Nov 11, 2002 | 08:10 PM
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Default Re: What port volume for 422

I would like to run mid 10's 475 plus rwhp the heads will be redone so each port flows the same but should the port volume be changed from 232 cc's to a bigger port volume?
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Old Nov 11, 2002 | 11:23 PM
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Default Re: What port volume for 422

232 cc's, it sounds like they are big ports already. The stock runners are around 203cc, our Stage II CNC runners are around 225 cc and we are working on a big 6.0L port thats up around 235-245 cc and flows another 20-30 cfm. My opinion, if you make the head flow alot of air everywhere, then you can't hardly make it too big. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Brian @ TEA
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Old Nov 12, 2002 | 08:34 AM
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Default Re: What port volume for 422

Brian:

How do you keep velocity up as the port size continues to increase?
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Old Nov 12, 2002 | 09:31 AM
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Default Re: What port volume for 422

GTP uses 232cc intake ports AFAIK.
Cheers,
Chris

ps- for a superstroker the port size is directly influenced by the cam choice and rpm range of the motor as well.
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