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4.8L heads/how much h.p

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Old Oct 23, 2002 | 02:23 PM
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From: jackson tn
Default 4.8L heads/how much h.p

How much HP will 4.8L heads {ported}give on a 98 LS1 will bolt ons. stock headers.How much more with a ls6/holley intake?
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Old Oct 23, 2002 | 04:43 PM
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From: new england
Default Re: 4.8L heads/how much h.p

Ported heads are typically 30 to 50 hp depending on port flow and compression gains.Ls6 intake may be worth 10 to 20 hp if your combo is relying on its extra volume and flow.This question cant be answered accurately without important specs and details included. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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