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Headers For A 5.3 Swapped 350z

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Old Feb 25, 2023 | 05:07 PM
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Default Headers For A 5.3 Swapped 350z

so i’m in the middle of swapping in a 5.3 into my 2006 350z and need low clearance headers. i’ve been looking and see the 5.3 has the same block as a ls1. would i be able to use ls1 headers for my swap? would the ls1 headers fit in the 350z or would i need to bang some things around?

Last edited by Superdupercandy; Feb 25, 2023 at 06:23 PM.
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Old Feb 25, 2023 | 06:20 PM
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ALL LS engines but the LS7 share all the same external dimensions and mounting points. Headers are more about which chassis they're for. If you have a pair of headers meant to fit an LS1 into a 350Z they will fit your 5.3.
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Old Feb 26, 2023 | 12:42 PM
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Originally Posted by G Atsma
ALL LS engines but the LS7 share all the same external dimensions and mounting points. Headers are more about which chassis they're for. If you have a pair of headers meant to fit an LS1 into a 350Z they will fit your 5.3.

ok i guess more or so my actual question is, will they fit in the 350z chassis? because with the swap kit they have the headers are like $1000 and i’m not really tryna spend that much if i can spend a little less and get ls headers.
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Old Feb 26, 2023 | 01:23 PM
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TBSS manifolds fit.
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Old Feb 26, 2023 | 06:41 PM
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Originally Posted by aknovaman
TBSS manifolds fit.
im not to familiar with those are they low profile?
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Old Feb 26, 2023 | 06:48 PM
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Originally Posted by Superdupercandy
im not to familiar with those are they low profile?
Check them on Rock Auto. They look like they would tuck in fairly close. Left side available from GM, right side from 4 different vendors.
They are the same as those used on 5.3 Trailblazers

Last edited by G Atsma; Feb 26, 2023 at 06:58 PM.
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