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The Cathedral Port Intake is an important component of many high-performance engines. It is a type of cylinder head intake manifold that has become popular in the racing world due to its ability to increase engine power and efficiency. This article will explain what a Cathedral Port Intake is, its benefits, and how it can be used to improve the performance of an engine.
Here are the Cathedral Port Intake
Cathedral Port Intake
1. LSXrt 102mm Intake Manifold

The LSXrt 102mm Intake Manifold for GM LS 8/3/
0L Truck with Cathedral Port Heads is designed to offer maximum power potential, along with improved torque and throttle response. This high-flow intake manifold is constructed from a lightweight, yet durable aluminum and features a 102mm inlet for improved air flow.
This intake is capable of supporting up to 750 horsepower, making it ideal for high-performance applications. The runners are optimized for maximum efficiency and the manifold design ensures optimal flow and velocity. This intake also features an integral velocity stack, allowing for improved performance and greater power potential.
This intake also features an integral velocity stack, allowing for improved performance and greater power potential. The cathedral port configuration ensures an ideal fit on cathedral port heads and the manifold is compatible with all standard LS accessories. This intake is ideal for anyone looking to increase power and torque in their LS-powered truck or hot rod.
2. Sheet Metal LS1/Cathedral Port

This Sheet Metal LS1/Cathedral Port Intake Manifold with Fuel Rail Kit is the perfect upgrade for any LS engine. Featuring a lightweight, high flow design to provide maximum performance and efficiency, this intake manifold is designed to unlock the highest levels of power and torque. The manifold is constructed from high-quality aluminum and features a cathedral port design to provide maximum airflow.
The included fuel rail kit ensures that the fuel delivery is consistent and reliable, making this the ideal choice for any performance build. With its easy installation and lightweight design, this manifold is the perfect way to get the most out of your LS engine.
3. NEW HOLLEY EFI HI-RAM

Introducing the Holley EFI Hi-RAM Intake Manifold – the perfect choice for anyone looking to upgrade their G LS1, LS2, or LS6 engine with a cathedral port intake. This high-quality manifold is designed for maximum performance, offering superior air distribution and power. It features a 1x92mm plenum top, black finish, and cathedral ports for increased airflow and efficiency.
It features a 1x92mm plenum top, black finish, and cathedral ports for increased airflow and efficiency. Plus, it’s compatible with a wide range of aftermarket accessories, making it a great choice for custom builds. With its improved performance and easy-to-install design, the Holley EFI Hi-RAM Intake Manifold is the perfect choice for anyone looking to upgrade their engine.
4. NEW HOLLEY EFI HI-RAM

Introducing the NEW Holley EFI Hi-Ram Intake Manifold, the perfect solution for high-performance G LS1, LS2, and LS6 engines. This intake manifold features a 1x92mm plenum top and silver, cathedral-style ports that provide maximum airflow to your engine. It’s also compatible with Holley’s EFI Hi-Ram systems, making it easy to tune for maximum power and performance.
It’s also compatible with Holley’s EFI Hi-Ram systems, making it easy to tune for maximum power and performance. The Holley EFI Hi-Ram Intake Manifold is designed to provide superior performance over traditional intakes, with improved torque and throttle response, as well as increased airflow for greater horsepower. The silver, cathedral-style ports also help to reduce turbulence and increase air velocity, resulting in a smoother, more consistent powerband.
Plus, the 1x92mm plenum top ensures that your engine can breathe easy and perform at its peak. This intake manifold is designed for easy installation and comes with all necessary hardware.
It’s also compatible with most aftermarket intakes and is built to perform in the most demanding conditions. It’s the perfect solution for anyone looking to upgrade their G LS1, LS2, or LS6 engine. The Holley EFI Hi-Ram Intake Manifold is an excellent choice for those looking for optimal performance and power from their engine.
With its superior airflow, superior torque and throttle response, and easy installation, this intake manifold is the perfect choice for the modern engine builder.
5. Nitrous Express – MSD

The Nitrous Express MSD Airforce Intake Manifold for Cathedral Port Heads with VXL Direct Port (INTAKE005) is the perfect upgrade for any vehicle equipped with cathedral port heads. This manifold is designed for maximum airflow and improved power and torque for your engine.
It comes pre-plumbed for easy installation and is made from durable aluminum for maximum strength and longevity. This manifold also features a unique VXL Direct Port configuration that helps to optimize fuel distribution and atomization for improved performance. The Nitrous Express MSD Airforce Intake Manifold has several advantages, including increased air flow, improved power and torque, and enhanced fuel atomization.
Its pre-plumbed design makes installation easy, and its aluminum construction ensures maximum strength and durability. Additionally, the unique VXL Direct Port configuration helps to provide an optimized fuel distribution for improved performance.
The only downside to this manifold is that it’s only compatible with cathedral port heads, so if you have any other type of head, this manifold won’t be suitable for your vehicle. However, if you have cathedral port heads and are looking to upgrade your vehicle’s power and torque, the Nitrous Express MSD Airforce Intake Manifold is an excellent choice.
6. GM Genuine Parts 12580420

The GM Genuine Parts 12580420 Intake Manifold Assembly is the perfect choice for anyone looking to upgrade their vehicle’s performance. This intake manifold is designed to provide superior air flow, which will result in increased power, improved fuel economy, and better overall engine performance. The GM Genuine Parts 12580420 Intake Manifold Assembly is constructed from durable black plastic and features a cathedral port design.
The GM Genuine Parts 12580420 Intake Manifold Assembly is constructed from durable black plastic and features a cathedral port design. This intake manifold is designed to fit GM vehicles and is backed by a 12-month warranty. It is easy to install and can be done with basic tools and a few minutes of your time.
The GM Genuine Parts 12580420 Intake Manifold Assembly is an excellent choice for anyone looking to improve their vehicle’s performance. It is reliable and will provide long-term performance enhancements.
7. FAST LSXr 102mm Intake

The FAST LSXr 102mm Intake Manifold is the perfect upgrade for your LS3/L92 engine. This advanced intake manifold is designed to help maximize the performance of your engine, allowing it to breathe more efficiently and provide more power than ever before. The 102mm design provides superior airflow and increased fuel flow, resulting in increased torque and horsepower.
The 102mm design provides superior airflow and increased fuel flow, resulting in increased torque and horsepower. Plus, it has been designed to be a direct replacement for the factory intake manifold, so installation is fast and easy. With its high-flow runners and raised plenum design, this intake manifold is the perfect choice for anyone looking to get the most out of their LS3/L92 engine.
This intake manifold is constructed from lightweight cast aluminum and features a black powder coated finish for superior corrosion resistance. It also comes with a billet aluminum throttle body and a 102mm throttle body spacer, ensuring that you always get the most out of your engine. And, with its optimized runner design and raised plenum, it delivers superior airflow and increased fuel flow, allowing your engine to run at higher RPMs and generate more power.
And, with its optimized runner design and raised plenum, it delivers superior airflow and increased fuel flow, allowing your engine to run at higher RPMs and generate more power. The FAST LSXr 102mm Intake Manifold is the perfect addition to your LS3/L92 engine, allowing you to maximize its performance and power output. With its lightweight design, superior airflow, and increased fuel flow, this manifold is sure to take your engine to the next level.
So, if you’re looking for an easy way to upgrade your engine, then the FAST LSXr 102mm Intake Manifold is the perfect choice.
8. FAST LSXr 102mm Intake

The FAST LSXr 102mm Intake Manifold for LS1, LS2, and LS6 is the perfect choice for anyone looking to upgrade their engine’s air flow and performance. This manifold is designed for cathedral port applications and is constructed from lightweight composite material for maximum strength and durability. It features an advanced runner design for improved air flow, a high-flow plenum, and an increased runner cross-sectional area for increased torque.
It features an advanced runner design for improved air flow, a high-flow plenum, and an increased runner cross-sectional area for increased torque. The black finish adds a sleek look to any engine bay and is sure to turn heads. Plus, the FAST LSXr 102mm Intake Manifold comes with all the necessary mounting hardware and accessories for an easy installation.
The installation process is simplified further by the included detailed instructions. The manifold is also compatible with a variety of aftermarket fuel injection systems for added convenience.
This manifold is sure to take your engine’s performance to the next level. The only downside is that it is not compatible with all LS engines, so make sure to double check compatibility before purchasing.
9. ACDelco GM Original Equipment

The ACDelco GM Original Equipment 89018187 Intake Manifold Kit is the perfect choice for replacing your old intake manifold. This kit includes the manifold and gaskets, and it is designed to fit cathedral port engines.
It is also designed to help reduce engine noise, vibration, and harshness. The intake manifold is backed by a limited lifetime warranty for added peace of mind.
This intake manifold is designed for professional installation and is not recommended for DIY projects. With its quality construction and durable materials, you can be sure that this intake manifold will stand the test of time.
10. FAST 54039B LSX Black

The FAST 54039B LSX Black 92mm Intake Manifold is the perfect solution for those looking to maximize their performance on the track. This cathedral port intake manifold is designed to fit a wide range of engines, allowing you to get the most out of your engine.
It also features an integrated fuel rail and billet fuel injector bosses, making it easy to upgrade your engine. The manifold also includes mounting hardware and gaskets for a quick and easy installation.
The FAST 54039B LSX Black 92mm Intake Manifold is an excellent choice for those looking for a reliable and powerful upgrade. It provides superior air flow and improved performance, making it ideal for those trying to get the most out of their engine.
Additionally, the manifold is only compatible with cathedral port engines, so you may need additional parts if you are using a different type of engine.
What to consider before buying Cathedral Port Intake
Benefits of a Cathedral Port Intake
The Cathedral Port Intake is a great way to get the most out of your engine. It offers increased air flow and better cylinder filling, improving your engine’s performance and power output.
In addition, it helps reduce emissions and improves fuel efficiency, making it a great choice for those looking to get the most out of their engine.
Factors to Consider Before Buying a Cathedral Port Intake
Before you purchase a Cathedral Port Intake, there are several important factors to consider. From the size of the port to the design of the air intake, these considerations can ensure you get the most out of your purchase.
a. Compression Ratio
The Cathedral Port Intake is an engine modification that increases the compression ratio, resulting in more power and torque for your engine. In layman’s terms, it’s like turbocharging your engine without having to add any additional parts.
Do I Really Need a cathedral port intake
No, you don’t necessarily need a cathedral port intake. However, cathedral port intakes can be beneficial for some applications, depending on the engine configuration, as they can improve airflow to the cylinders. It is important to research the specific engine and application before making a purchase to make sure the intake is compatible and will provide the desired results.
It is important to research the specific engine and application before making a purchase to make sure the intake is compatible and will provide the desired results.
What Are the Main Benefits Of cathedral port intake
Improved airflow: Cathedral port intakes offer a larger, smoother airflow path into the engine compared to standard port intakes, which can help maximize performance.
More power potential: The larger port size offered by cathedral port intakes can allow for larger valves and cams, which can help increase power potential.
Easier installation: Cathedral port intakes are easier to install and maintain than traditional intakes as they require less modifications to the engine block.
What are the advantages of a cathedral port intake?
The advantages of a cathedral port intake include improved breathing, better port velocity, improved fuel atomization, and increased torque. The design also allows for larger valves and a higher compression ratio, which can lead to increased engine power.
What type of engine is most commonly associated with a cathedral port intake?
The most common type of engine associated with a cathedral port intake is a small block V8.
How does a cathedral port intake compare to a standard intake in terms of air flow?
A cathedral port intake produces more air flow than a standard intake due to its larger volume and higher port location. The larger volume allows for more air to be drawn in and the higher port location allows for a more direct path for the air to travel, resulting in increased air flow.
What are the differences between a cathedral port intake and an LS6 intake?
The main differences between a cathedral port intake and an LS6 intake are the size of the intake runner and the shape of the intake port. The cathedral port intake has much larger intake runners and a larger intake port than the LS6 intake, resulting in increased airflow. The LS6 intake has a much more efficient design, with smaller intake runners and a more efficient intake port shape, resulting in better fuel distribution and increased power.
How can a cathedral port intake be modified to improve performance?
A cathedral port intake can be modified to improve performance by increasing the port size and volume, increasing the intake runner length, and optimizing the port and runner shape. Additionally, modifying the valve timing and lift, installing a better throttle body and intake manifold, and port-matching the intake manifold and cylinder heads can all help improve performance.
What components are necessary to install a cathedral port intake?
The components necessary to install a cathedral port intake include the intake manifold, gaskets, hardware, fuel-injection system, and air filter.
Final Touch
In conclusion, the Cathedral Port Intake is an excellent choice for those looking for an upgrade or replacement intake for their vehicle. It provides increased airflow, improved power, and increased fuel efficiency, as well as being easy to install and maintain. The sleek design and quality construction make it a great choice for any vehicle, and the price point is very reasonable.
The sleek design and quality construction make it a great choice for any vehicle, and the price point is very reasonable. With its high performance and great value, the Cathedral Port Intake is a great choice for any automotive enthusiast.