LS3 headers

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03-20-2011, 08:20 AM

WS64Mula

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LS3 headers

I have a question about LS3 heads exhaust ports and headers. Are the exhaust ports specific to LS3 heads or can I use any header that is applicable to my vehicle and have no problem? Thanks

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03-20-2011, 08:35 AM

87silverbullet

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You just use ls headers the ls3 exhaust port is not specific

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03-21-2011, 01:52 PM

redtan

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The LS3 heads have a D shaped exhaust port while earlier LS1 and 2 have it round. So you can use a header meant for LS1s on the LS3 port because of overhang, but you can't go the other way.

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