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Chevrolet Performance Vortec Throttle Body Injection Intake Manifold Cast Aluminum


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Vortec Throttle Body Injection Intake Manifold Cast Aluminum
Vortec Throttle Body Injection Intake Manifold
  • Cast Aluminum
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    12496821 is rated 4.5 out of 5 by 2.
    Rated 5 out of 5 by from Not simple This takes more than it would at first appear. No commercially available EGR block-off plates are available. No commercially available EGR exhaust manifold to intake manifold tubes are available. The EGR plug runs another $23 on top of the $470 for the manifold, and the coolant hose from the water pump to intake manifold is also not a very well defined variable. Now that all that stuff is sorted out, it runs very well, as it should for the money and time investment.
    Date published: 2018-04-03
    Rated 4 out of 5 by from TBI manifold Jegs sent an email asking for a review but I haven't even put this engine(that I bolted the manifold to) in my vehicle yet. What can I say, it looks good. I painted it tan, and it matches the engine now. It looks like it should run really well. The shipping was really fast (2 days). It did bolt up to Vortec heads. It is really expensive, but it Jegs has the best deal out there. I wish I could tell you more...
    Date published: 2015-02-16
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    Where do I put the coolant temperature sensor

    Asked by: Sonik
    The coolant temp sensor can go next to the thermostat housing or in the cylinder head when using the GM 809-12496821 intake manifold.
    Answered by: jshook
    Date published: 2023-01-06

    If I upgrade my 94 5.7  with the later vortec heads is this the correct manifold to increase torque and horsepower?  I plan on keeping the TBI so I don’t have to change other connections

    Asked by: Mack3
    The 809-12496821 GM intake is not compatible with '94 model year cylinder heads.
    Answered by: jshook
    Date published: 2022-08-08

    Will this intake be able to support a big block tbi or is there another number for that kind of an intake

    Asked by: Mergy 101
    No, you will want to use this intake manifold - https://www.jegs.com/i/Edelbrock/350/3764/10002/-1
    Answered by: Rusty B
    Date published: 2018-10-09

    Is the port by the egr ok to run the bypass to water pump? 

    Asked by: Yungzie
    Yes, you should be able to use that port for a water pump bypass.
    Answered by: Rusty B
    Date published: 2018-09-10

    Are these compatible with the 5.0 and the 5.7?

    Asked by: MNighthawk
    Yes, this will work with either engine.
    Answered by: Rusty B
    Date published: 2018-08-23

    The manifold says suggested routing for the coolant bypass is the 3/8 nspf. However, if this is used what connection would be used to connect the coolant temperature sensor? There's a 5/8 npt near the egr valve, can that be used for coolant bypass?

    Asked by: SBC1
    Yes, you can use any of the coolant ports in this intake manifold.
    Answered by: Rusty B
    Date published: 2018-07-10

    Is this compatible with the Holley 502-5?

    Asked by: Andrews94k1500
    This is compatible with the 502-5 unit.
    Answered by: Jon Jegs Tech
    Date published: 2019-09-30
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