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intake swap ?

This is a discussion on intake swap ? within the External Engine forums, part of the LSx Technical Help Section category; i have a 5.3 in my gmc and am wondering the gains with a ls6 intake swap ? pros ? ...

  1. #1
    Junior Member jeffz0rz's Avatar
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    intake swap ?

    i have a 5.3 in my gmc and am wondering the gains with a ls6 intake swap ? pros ? cons ?

  2. #2
    Member c5z28's Avatar
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    It would be interesting since you have a different looking manifold. A little more on the top end doesn't show any gains below 3500rpm compared to the ls1 manifold-then again different manifold. What size is your throttle body, and does it have 3 or 4 bolt holes? The ls-6 has 3

  3. #3
    Junior Member jeffz0rz's Avatar
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    not sure on TB size. everything is stock. my 5.3 is considered an ls motor isnt it ?

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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Quote Originally Posted by jeffz0rz View Post
    not sure on TB size. everything is stock. my 5.3 is considered an ls motor isnt it ?
    Well, it's a GenIII motor, but it is a LM7 (5.3L)

  5. #5
    Junior Member jeffz0rz's Avatar
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    oh ok. so from swhat i'm reading some LS pars are compatible with my 5.3 ? are there stock ls parts that i can get for cheap that would bolt up and show some gains ?

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    bad new's

    sorry but it's alot of work ls intake's won't clear truck accesory's that's why T/B is angled up have to try and switch to vette or f-body accesory's. i have heard of some company's makeing custom mounts for truck stuff
    If speed kill's do brakes give life ?

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    fast make a truck intake,heard it makes great power.

  8. #8
    Junior Member jeffz0rz's Avatar
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    any idea where i can find some go fast goodies for my 5.3 ?

  9. #9
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    i would recommend starting with the basics good cold air intake (airraid aem k'n) free flowing muffler (cheapest way to start is just cuting out the stock muffler and adding high flow one instead ) or cat back system programmer any of the big brands or custom then header's (long tube make better power but shorties are easy to install ) Comp makes cam's just for the truck motors the your budget is the limiting factor lots of superchargers available (magnuson, vortec ,procharger ) search on hear or gm-trucks .com
    good luck



    ps (with more power don't forget about upgrading the brakes ebc's are good)
    Last edited by canadaz71; 10-05-2009 at 05:05 PM. Reason: add signiture

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