7 Best Intake Manifold for 5.3 Vortec [Top Picks & Buying Giuide]

Are you tired of facing overheating and leakage issues with your engine? Well then, you should keep in mind that neglecting the problems might create a worse situation. Not just that, it might even lead to accidents.

And so, you should protect your engine from all these possible outcomes with the help of the best intake manifold for 5.3 VortecHowever, you cannot just pick a random intake manifold. So, which Intake Manifold is best for 5.3 Vortec? 

Well, we understand your needs. That is why we went through tons of products to narrow down our top list for you.

Let us start with the table below to get a glimpse of all the products at once.

Top 7 Intake Manifold for 5.3 Vortec- Comparisons

Product NameKey FeatureRPM RangeExteriorPrice
Auto Dynasty Store Replacement Intake ManifoldOne-piece designIdle – 6500Flat
Dorman 615-183 Engine Intake ManifoldIncluded map sensorsN/APaintable
FAST Store LSXrt 102mm Intake ManifoldHigh-flowing intake1800 – 6000Machined
ACDelco GM 25200449 Intake ManifoldBrake booster portIdle – 5500Machined
FAST 54039B LSX Intake ManifoldDirect bolt-on1800 – 6000Machined
FAST LSXr 102mm for LS1, LS2, and LS6Stable RPM torque1800 – 6000Polymer
A-Premium Upper Intake Manifold ReplacementO-gasket sealingN/AMachined

Top 7 Intake Manifold for 5.3 Vortec

So, we got a glimpse of the product table. We will be discussing each of the products briefly in the next section. Therefore, let us start.

1.Auto Dynasty Store Replacement Intake Manifold

Auto Dynasty Store Replacement Intake ManifoldThe Auto Dynasty intake manifold is famous for its incredible cooling facility. It helps to keep the temperature under control that prevents exhaust leakage. Not just that, the even injection adds to the efficiency of your engine.

As a result, with this on your engine, you can forget about all the overheating issues. Now, coming to the structural design of this Silverado intake manifold. Because of the reinforced plastic, you get a long-lasting service.

Lastly, the convenience of this intake manifold takes it to a greater level. Moreover, the one-piece design allows you an easy installation as well. Overall, it serves a great deal to your 5.3 Vortec.

Features & Benefits

Remarkable cooling

The auto dynasty intake manifold helps with the overall cooling process of your engine. Thus, you can protect your engine from overheating.

Impressive durability

The design of the intake manifold uses reinforced plastic. As a result, you get to enjoy superb durability for a long time.


Along with the built-in gasket, the intake manifold offers you a user-friendly installation procedure.


  1. Built-in gasket
  2. Superb cooling efficiency
  3. Great for fuel injection
  4. One-piece design
  5. Easy installation process


  1. Has a limited compatibility

2.Dorman 615-183 Engine Intake Manifold

Dorman 615-183 Engine Intake ManifoldWith high-quality materials and design, the Dorman 615-183 provides your engine an even fuel distribution for a long time. Apart from that, this aftermarket intake manifold for 5.3 l Vortec has plenty of facilities.

For starters, it gives you compatibility. That is right. The efficient design ensures you the best replacement.

Secondly, it provides you essential items like sleeve-bolts and map sensors. And lastly, user-friendliness makes it an attractive choice for newcomers.

Features & Benefits

Excellent design

The design structure of the Dorman 615-183 makes it a trustworthy product with superb compatibility.

Great replacement

The intake manifold focuses on supreme preciseness. And so, it matches all the functionalities without any issues.

Superb durability

It goes through tons of tests to ensure the best durability. Hence, the product elongates both your engine’s performance and longevity.


  1. Includes sleeve-bolts
  2. Hassle-free installation
  3. Spacious inside
  4. Comes with map sensors


  1. The sensors might not be compatible

3.FAST Store LSXrt 102mm Intake Manifold

FAST Store LSXrt 102mm Intake ManifoldWhen it comes to power, this best carburetor intake manifold for 5.3 Vortec never disappoints you. It not only supports high-flow but also facilitates racing applications. Moreover, the higher gains add to its efficiency.

Again, the polymer material ensures its sturdiness. Nevertheless, the structure is lightweight. As a result, you can move it around quickly.

You will also get the necessary components with it. And so, the installation process takes a little time. In total, this intake manifold is the best choice for your 5.3 Vortec.

Features & Benefits

Multi-layer design

The design of the intake manifold includes multiple layers with detachable runners. Thus, it ensures superior portability.


You can pair it up with throttle bodies of 102, 92, and 90 millimeters. As a result, it facilitates a high flow-rate.

Great power

With the perfect cowl clearance, the intake manifold works great for racings applications.


  1. Convenient bolt-on fit
  2. Provides a nitrous bung
  3. Compatibility with cathedral port-heads
  4. Includes air inlet
  5. Quick installation process


  1. Difficulties with injector fitting

4.ACDelco GM 25200449 Intake Manifold

ACDelco GM 25200449 Intake ManifoldThe specialty of the ACDelco GM 25200449 lies in the working principle of it. With this ACDelco GM 25200449, your 5.3 Vortec performance intake manifold reaches a new level.

Next, you have impressive toughness. However, unlike the other sturdy options, it is not bulky or overweight. Thus, you do not have to compromise with the user-friendliness of it.

Moreover, it has multiple ports for map sensors and brake boosters. These ports add to the convenience and make your job quick and hassle-free.

Features & Benefits

Even distribution

The intake manifold makes sure that your combustion mixture distributes evenly into the cylinder.

Highly durable

The design and high-quality materials make the structure durable.

Double intake port

It contains two ports. One of them is for the brake booster, and the other one is for the map sensor.


  1. Comes with factory seals
  2. Quick installation
  3. Utilities pre-installed seals
  4. Includes a built-in gasket


  1. Missing runner solenoid
  2. Average-quality rubber valve

5.FAST 54039B LSX Intake Manifold

FAST 54039B LSX Intake ManifoldAs we know, overheating leads to further problems for your engine. That is why the FAST 54039B eliminates all the heating issues and keeps your engine cool and healthy for a long while.

Not just that, the durable cover holds the entire structure and saves it from oxidation and corrosion. It also increases the longevity of your intake manifold. So, it is a big plus point for your engine.

Another attractive aspect of this intake manifold is the appearance. The sleek body and lightweight design suit any condition and show superior compatibility.

Features & Benefits

Stainless steel cover

The intake manifold has a stainless steel cover that protects it from corrosion and rust.

Impressive sealing 

Because of the best intake manifold gasket for 5.3 Vortec, you get a superb sealing quality throughout your journey.


The FAST 54039B is fast, efficient, and convenient. Therefore, it is super-easy to use.


  1. Generates supreme power
  2. Direct bolt-on facility
  3. Amazing compatibility
  4. Flexible and lightweight


  1. Missing built-in gasket

6.FAST LSXr 146302B for LS1, LS2, and LS6

FAST LSXr 146302B for LS1, LS2, and LS6Because of the precise design and high-quality materials, you can take your engine to a brand new level with this FAST LSXr 146302B. The polymer materials allow it to hold up the heat and wear.

As a result, it ensures even distribution of fuel and boosts the efficiency of your engine. Nevertheless, the rpm torque remains under control and gives you better stability.

Not to mention, the quick installation and replacement add a boost to its credibility. In total, the intake manifold provides everything you need for a powerful performance.

Features & Benefits

Stable RPM

The intake manifold offers a long runner and additional hp. Thus, it maintains a stable RPM torque.

Super light 

For the structural design, it uses polymer materials. Therefore, it becomes super-light and convenient.

Easy replacement

The easy disassembling and modular design make your replacement job easy and quick.


  1. Includes gaskets
  2. Superior cooling facility
  3. Provides mid-range pulls
  4. Sleek and attractive outlook
  5. Easy to transport


  1. A bit clumsy to install

7.A-Premium Upper Intake Manifold Replacement

A-Premium Upper Intake Manifold ReplacementThe A-Premium Upper intake manifold has several outstanding facilities to attract you. Among them, the versatility is noteworthy. You can pair it up with an enormous amount of brands.

However, the intake manifold is limited to the non-map-sensor ones. Next, you have the sealing. With the high-quality sealing, say goodbye to all those exhaust leakages.

Finally, it focuses on increasing your ease of work. Therefore, hurry and grab this intake manifold for your precious engine.

Features & Benefits 

Remarkable sealing

With the o-gasket, you can enhance the sealing quality tremendously.

Quick setup 

With the intake manifold, you will get installation bolts. Thus, it gets super easy to set it up.

Superb compatibility

The A-Premium works with tons of models. However, it shouldn’t have map-sensors.


  1. Compatible with fuel trims
  2. Not too heavy
  3. Includes a black hose
  4. Works with EGR tubes


  1. Incompatible to vehicles including map-sensors

How to Choose the Intake Manifold for 5.3 Vortec?

Well, we saw several aspects and learned about the specialties of these products. However, to figure out what works best for your engine, you need some essential factors. So now, let us discuss these factors that will help you choose.

Accurate Fit

Before checking any other aspects, the first thing that you need the right fitment. You might find several attractive features in an intake manifold. However, if it doesn’t support your engine, then all your efforts will go in vain. Therefore, make sure that it fits perfectly into your engine.

RPM Range 

The RPM range helps you find out the perfect match for your engine. That is why don’t forget to check that range before buying one. If you are looking for options for your street car, 600 RPM will work great for you.

However, performance cars require higher ranges. And so, for that, you might go for the ones starting from 2500 to 8000.

Idle Quality

To get the best from your engine, you should always look for better throttle response and idle quality. And so, prioritize the ones with smaller cross-sectioned runners and plenums for your street-cars.

On the other hand, larger plenums and runners can pass a higher amount of fuel. Therefore, look for higher ones if you are working with performance cars.


Intake manifolds have to handle temperature fluctuations. As a result, durable material allows you to get better protection against excessive heat. For that, look for products that include sheet metals or composite metals.

Plane System

Well, the correct plane system depends on what type of vehicle you are using. For example, if it is for a regular one, you will need a double plane system. Again, single-plane systems work better for performance cars.

Frequently Asked Questions (FAQs)

It’s good to be curious. And why not? Asking questions is the best way to learn better about something. That is why we are here to answer all those questions in this FAQ section below.

Question: What Is An Intake Manifold?

Answer: An intake manifold is a set of tubes that supplies fuel mixture into your engine’s cylinders. It is also responsible for an even distribution of fuel.

Question: What Are The Symptoms Of A Bad Intake Manifold?

Answer: A bad intake manifold shows several symptoms. Some of the most prominent symptoms are overheating engine misfires and exhaust leakage with a hissing sound.

Question: Is It Possible To Drive With A Bad Intake Manifold?

Answer: Well, it is risky to drive with a defective intake manifold. Even the slightest malfunction can result in mishaps. So, always avoid such risks.

Question: What Does It Mean For An Intake Manifold To Leak?

Answer: The intake manifold leakage denotes the dysfunction of the sealing. Now, that occurs because of the overheating of the engine. You can detect it by the distinct hissing noise.


As you saw, the best intake manifold for 5.3 Vortec can add a lot to your engine’s performance. However, a wrong choice can turn everything into a disaster within seconds. Therefore, it is your responsibility to make sure that you are getting the best one.

So, go through all the details carefully and compare them accordingly. Use the guidelines to set your goals and give your 5.3 Vortec the perfect intake manifold.

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