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Kooks 1 3/4 Vs. 1 7/8 Stock Head/cam C5?

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Old 09-02-2005, 08:20 PM
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Default Kooks 1 3/4 Vs. 1 7/8 Stock Head/cam C5?

looking into the 1 7/8 due to availability and tired of waiting for the smaller pipes, would and hp/tq be lost w/ the larger pipes on a stock cam/head na car? i know there are other headers avail, but these are what the person i'm helping is choosing, thanks
Old 09-02-2005, 09:07 PM
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Are you planning in ever doing H/C or forced induction? If not I would just do 1 3/4. But if you went with the 1 7/8 I don't imagine it would hurt you
Old 09-02-2005, 09:15 PM
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Originally Posted by Strahley
Are you planning in ever doing H/C or forced induction? If not I would just do 1 3/4. But if you went with the 1 7/8 I don't imagine it would hurt you
Go look up the article Car Craft or Hot Rod did on the testing of the primaries for a LS1....1 7/8 made the most power over the rest and I believe it was all on a stock motor...
Old 09-02-2005, 09:28 PM
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Wait for the 1 3/4. Unless the car will nver see below 4500 then get the 1 7/8.
Old 09-03-2005, 05:51 PM
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this is 50/50?




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