FAST – LSXHR 103mm Intake Manifold for LS3 Rectangular Port (146106)

(1 customer review)

$1,261.95

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FAST

The FAST LSXHR intake manifolds are available for LS3 rectangular port applications, as well as LS7 raised rectangular port applications. These units are the industry’s first polymer tunnel ram-style intake manifolds—and are ideal for generating maximum power in boosted and naturally aspirated engines. Order the model designed for your application.

  • Comes standard with tall runners, short and medium runners available separately.

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SKU: 146106 Category: Brand:
Description

The LSXHR™ 103mm Intake Manifold for LS3 Rectangular Port Applications features:

  • Standard “tall” stacks are interchangeable with separately purchased “medium” and “short” stacks to find the most powerful combination
  • Polymer construction is lightweight and high strength to eliminate power-robbing heat soak commonly found in aluminum intake manifolds
  • Average 30 HP gain between 5,000 and 7,500 RPM over competitors’ high ram intake manifolds
  • Rated for up to 45psi of continuous pressure
  • Compound fuel injector angle aims spray pattern for ideal atomization, resulting in maximum power production and superior drivability
  • Reversible top allows for forward- or firewall-facing throttle body installations
  • Two nitrous nozzle bosses per runner for clean and easy direct port system installations
  • 103mm Throttle body opening can be ported to 105mm
Reviews (1)

1 review for FAST – LSXHR 103mm Intake Manifold for LS3 Rectangular Port (146106)

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    Blake Smith
    Verified owner

    Very nice Intake good quality!

    (0) (0)
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Questions & Answers (15)

Customer questions & answers

    I have a 2012 Sierra with a 6.0 w/832 heads. Will this work??
  1. Q I have a 2012 Sierra with a 6.0 w/832 heads. Will this work?? answer now
    Asked by Melvin on October 25, 2023 5:57 pm
    A That manifold will bolt to those heads yes, but depending on your application may not be best suited for your needs.
    2. is there any room for this manifold to receive any porting ?
  2. Q is there any room for this manifold to receive any porting ? answer now
    Asked by jose barrientos on June 13, 2022 5:14 pm
    A No sir
    3. I have a 2010 camaro ss what all does it come with and what modifications would I have to do to install it?
  3. Q I have a 2010 camaro ss what all does it come with and what modifications would I have to do to i...... Read more answer now
    Asked by Edgar Cardona on December 19, 2021 2:14 pm
    A Not sure what you would have to do to install we've never installed one and I'm sure it comes with everything in the picture but you may reach out to edelbrock and verify first
    A you need to remove your wiper assembly in order for it to clear the manifold other, then that it fits like a glove.
    4. Hi i need to know the height of the LSXHR 103 intake manifold, from the endgine vallypan.
  4. Q Hi i need to know the height of the LSXHR 103 intake manifold, from the endgine vallypan. answer now
    Asked by Gert Ekstrom on October 25, 2021 5:29 am
    A Believe they have the dimensions on edelbrocks site
    5. Will this fit on a 2016 Chevy Silverado 5.3
  5. Q Will this fit on a 2016 Chevy Silverado 5.3 answer now
    Asked by Joseph on September 10, 2021 6:27 am
    A No it will not, this is designed for ls3 heads and this high of a manifold I'm not sure would clear the wiper cowl
    6. You don't seem to carry the Fast Lsxhr for Cathedrals? What would be price on it?
  6. Q You don't seem to carry the Fast Lsxhr for Cathedrals? What would be price on it? answer now
    Asked by Rob on June 4, 2021 2:34 pm
    A It would run $982.95
    7. Do I need a tall or short injectors?
  7. Q Do I need a tall or short injectors? answer now
    Asked by Ramon A Vazquez on February 7, 2021 9:59 pm
    A The LS3 style short injector should fit as needed.
    8. I have a 2004 Chevy suburban 5.3. 4 wheel drive LT. what I take do you recommend?
  8. Q I have a 2004 Chevy suburban 5.3. 4 wheel drive LT. what I take do you recommend? answer now
    Asked by Todd on January 23, 2021 2:03 pm
    A It depends on what your set up is. What type of mods do you have? What type of mods you plan to do?
    9. Can you this without a cold air intake and just run the stacks exposed?
  9. Q Can you this without a cold air intake and just run the stacks exposed? answer now
    Asked by Carl Smalls on January 20, 2021 1:30 pm
    A You cannot run it with just the stacks exposed. No way to have throttle body to control engine speed.
    10. Can you run both wipers with this?? Any modifications need to me done to firewall??
  10. Q Can you run both wipers with this?? Any modifications need to me done to firewall?? answer now
    Asked by Dusty on November 27, 2020 7:55 pm
    A This intake is actually taller than the Hi Ram, you will need to loose both wipers and cut the wiper cowling for it to clear.
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