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vortec intake on a ls1

This is a discussion on vortec intake on a ls1 within the External Engine forums, part of the LSx Technical Help Section category; I HAVE A VORTEC INTAKE IN NOT SURE IF ITS FOR A 6.0 5.3 OR 4.8 I PLAN ON USING ...

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    vortec intake on a ls1

    I HAVE A VORTEC INTAKE IN NOT SURE IF ITS FOR A 6.0 5.3 OR 4.8 I PLAN ON USING IT FOR MY 2002 LS1 SINCE MINES DIDNT COME WITH ONE.I WANT TO KNOW IF IT WOULD INCREASE PERFORMANCE OR DECEREASE IT COMPARED TO THE LS1 LS6INTAKE.
    Last edited by Alexander Abraham; 05-23-2010 at 09:13 AM.

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    NY Representative basballny2's Avatar
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    whats the size on the intake?

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    Im not sure all i know is that it comes off the vortec motor im not sure if its a 4.8 5.3 or 6.0 intake

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    Senior Member tatertot91's Avatar
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    You'd be better off with an ls6 intake
    Not to mention the vortec is ugly

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    Senior Member Z28boy2000's Avatar
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    Quote Originally Posted by tatertot91 View Post
    You'd be better off with an ls6 intake
    Not to mention the vortec is ugly



    if you search the classifieds here ans some other sites for an LS6 intake for a fairly reasonable price

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    Although ugly, the truck intakes are far superior to the LS1 intake, and slightly better than the LS6. Too bad they don't clear to cowl on our cars.

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by Marc 85Z28 View Post
    Although ugly, the truck intakes are far superior to the LS1 intake, and slightly better than the LS6. Too bad they don't clear to cowl on our cars.
    uh wut ? they are decent at low end ...but top end they dont hold a candle to the ls2,ls6 etc.
    Last edited by shady milkman; 05-24-2010 at 10:24 AM.

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    Quote Originally Posted by Marc 85Z28 View Post
    Although ugly, the truck intakes are far superior to the LS1 intake, and slightly better than the LS6. Too bad they don't clear to cowl on our cars.
    are they that tall the vortec engine intakes vs the ls1 or ls6 intakes

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    Senior Member tatertot91's Avatar
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    i would put the vortec intake close to the ls1 intake and the ls6 being far superior

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    That guy thearborbarber's Avatar
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    The LS1 has a plenum volume of 5.06 liters, runner length of 262mm and runner volume of .536 liters.

    The LS6 has a plenum volume of 5.19 liters, runner length of 262mm and runner volume of .541 liters

    The Truck intake has a plenum volume of 4.0 liters, runner length of 263mm and runner volume of .513 liters

    This is from Chevy LS1/LS6 Performance by Chris Endres.

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    So far it sounds like the vortec intake would be similar to the tpi intake thats on the first gen sbc.it comes across as making more torq than the ls1 or ls6.How much taller is it than the ls1 or ls6 and how much restrictive than a ls1 or ls6.

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    Member c5z28's Avatar
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    You were just shown the truck intake is a downgrade from the ls-1 intake, you would also need new fuel rails.

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    Quote Originally Posted by c5z28 View Post
    You were just shown the truck intake is a downgrade from the ls-1 intake, you would also need new fuel rails.
    ok but your comment doesnt answer my question i asked if it would produce more torq than hp compared to the ls1 or ls6 i suggest that you read my last post again. your statement dose not answer my question

  14. #14
    Quote Originally Posted by shady milkman View Post
    uh wut ? they are decent at low end ...but top end they dont hold a candle to the ls2,ls6 etc.
    Quote Originally Posted by c5z28 View Post
    You were just shown the truck intake is a downgrade from the ls-1 intake
    The 90mm truck intake is the best cathedral port intake GM makes, and this has been proven over and over again. You just don't hear about it much because both the F and Y body cars cannot use them.

    There is a reason why they're used in high dollar race engines where an OEM intake manifold is required. And it's certainly NOT low end torque.

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    Quote Originally Posted by Marc 85Z28 View Post
    The 90mm truck intake is the best cathedral port intake GM makes, and this has been proven over and over again. You just don't hear about it much because both the F and Y body cars cannot use them.

    There is a reason why they're used in high dollar race engines where an OEM intake manifold is required. And it's certainly NOT low end torque.
    Show me some articles or dyno graphs-please

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by c5z28 View Post
    Show me some articles or dyno graphs-please
    On a truck forum they showed it....it performed better than the ls1 but did not the ls6 or the fasts...that is why I am confused about his post about race engines....

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    truck intake

    I have read many places that the truck intake can hang with the ls6 it gives up a little on the top end but smokes an ls1 intake, I have decide it is not worth the coin to swap to an ls6 and i would not even consider a ls1 the truck has a larger tb witch is better. and relly the extra tq will move you out of the hole if your heavy I say if you have room run the truck intake and spend your money on a cam swap ls6 intake and rails are gonna run you about 300-400 bucks you can keep your intake spend about double that and get a cam swap and tune and be very happy just my .02

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    ok well i see the facts about the vortec intake is going in two different directions not to say that anyone on here is not telling the truth.can we get some links perhasp to show the comparison with the vortec intake compared to the ls1 or ls6 intake.

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    Quote Originally Posted by Marc 85Z28 View Post
    Click for full size

    damn thats nice what size motor is that and what kind of vehicle is that

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