GM LS Cathedral Port EFI Single Plane Aluminum Intake Manifold - Black

• GM LS Series EFI intake uses application-matched throttle-body sizing with Electronic Fuel Injection provisions for properly matched engine management.

• Cathedral intake port shape helps match compatible cylinder heads and gaskets.

• Fuel rails included: Yes. Rail fitting thread: -8 AN. Injector provision: EV1. Verify injector height and fuel-line routing.

• Check hood clearance, accessory clearance, and wiring reach before installation.

Built for upgraded induction performance, this intake manifold supports improved airflow characteristics and stable fuel delivery for GM LS Series applications using properly matched carburetor or EFI configurations.

Airflow & Performance Design
The intake runner and plenum design help support balanced airflow delivery between cylinders while maintaining stable throttle response and dependable street-driven performance.

Construction & Engine-Bay Fitment
The manifold construction to support long-term durability, heat management, and a clean installed appearance in demanding engine-bay environments.

Installation Considerations
Proper installation requires confirming cylinder head compatibility, intake gasket alignment, carburetor or throttle-body configuration, distributor clearance, and hood clearance before final assembly.

System Matching
Verify fuel system compatibility, throttle linkage setup, vacuum routing, sensor provisions, and accessory clearance before installation. This intake manifold is intended for properly matched engine combinations.

What engines is this intake manifold compatible with?
This intake manifold is designed for GM LS Gen III cathedral port applications, including 5.7L/346ci.

Will this intake fit LS cathedral port engines like 4.8L, 5.3L, 5.7L, or 6.0L combinations?
Yes, this intake is designed for LS cathedral port combinations commonly used in Gen III-based applications.

What fuel system is this intake designed for?
This intake is designed for EFI applications using multi-port fuel injection, making it a strong choice for performance LS builds.

What RPM range is this intake designed for?
This intake is designed to operate from 2,500-7,000 RPM, making it suited for higher-RPM performance use.

How does a single-plane intake help performance?
A single-plane intake is designed to support stronger high-RPM airflow, making it a good choice for aggressive performance combinations that want more top-end power.

Is this intake better for street or race use?
This intake is better suited for aggressive street, street/strip, and higher-RPM performance applications.

What type of intake manifold is this?
This is a single plane, for cathedral applications intake manifold built to improve airflow and support performance LS combinations.

Will this intake clear a stock hood?
It features a performance-oriented intake profile, with a front height of 5.417 in., center height of 5.417 in., rear height of 5.417 in., so hood clearance should always be checked against your specific vehicle combination.

What material is this intake made from?
It is made from aluminum, which helps reduce weight while supporting strength and heat control for performance use.

Does this intake support EFI-specific hardware?
Yes, this intake is designed around EFI applications and the supporting hardware needed for electronic fuel injection setups.

What else should I know before installation?
As with any performance intake upgrade, proper fuel, ignition, and tuning support are important to get the best results from the manifold.

Will this intake improve throttle response on my LS build?
Yes, this intake is designed to improve airflow and mixture distribution, which can help deliver stronger throttle response and more consistent power.

Is this a good upgrade from a stock intake?
Yes, this intake is a strong upgrade for compatible LS applications that need better airflow, stronger power potential, and improved performance over a stock-style manifold.

Does the black finish affect performance?
No, the black finish does not change the manifold's performance characteristics—it mainly changes appearance and gives the intake a more aggressive look.

Is the black finish durable for long-term use?
Yes, the black finish is designed for durability and corrosion resistance when properly maintained.