Head Flow Vs Bore Size

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Jun 2, 2005 | 07:29 PM

NA$TY-TA

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From: San Antonio, TX

Head Flow Vs Bore Size

Since the search isnt working i thought id ask this.....

Does what a Head flows go up or down with Bore size???
Say a head was flowed on a 3.875" Bore and is used on a 4.03" Bore on a motor....
Just wondering since i got my heads back.
Kyle

Jun 2, 2005 | 07:56 PM

Beast96Z

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From: Shreveport, LA

If the head is up to the task of supporting the air, it will flow more. If the smaller bore moved more air than the port would allow, obviouslly, the number would not grow.

Jun 2, 2005 | 08:34 PM

NA$TY-TA

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From: San Antonio, TX

I was just wondering since they are 6.0L heads and have a 4" chamber to start with...
Im not worried about peak flow anyways..... more with mid.... and this is a turbo setup so im not really worried.....
Kyle

Jun 2, 2005 | 08:38 PM

JZ'sTA

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From: Ft. Myers Fl

Typicially if you take a identical set of heads one setup for a 3.9 bore and the other lets say a 4.125 bore the 4.125 bore will defentially out flow the 3.9 bore.