GM LS Cathedral Port Carbureted Single Plane Aluminum Intake Manifold - Black
GM LS Cathedral Port Carbureted Single Plane Aluminum Intake Manifold - Black
SKU: SKU: 81132BK
In stock
Product Details
Features
- Fits LS1, LS6, LS2, 5.3L & 6.0L cathedral-port engines
- Single-plane design supports performance airflow
- Converts LS engines to carbureted operation
- Black aluminum performance construction
Description
Upgrade your LS-powered build with the Top Street Performance GM LS Cathedral-Port Carbureted Single Plane Aluminum Intake Manifold. Designed for Chevrolet LS cathedral-port engines, this black aluminum intake manifold provides a straightforward solution for LS carburetor conversions, performance street vehicles, hot rods, muscle cars, and custom LS swap projects.
Engineered with a single-plane runner design, this LS carbureted intake manifold is optimized to support increased airflow demand throughout the 2,500-7,000 RPM operating range. The open-plenum design promotes efficient airflow distribution, making it an excellent choice for naturally aspirated and power-adder combinations seeking improved induction performance.
Constructed from lightweight aluminum with a black finish, this intake manifold provides durability, corrosion resistance, and a clean performance appearance. The 4150 square-bore carburetor flange supports popular 4-barrel carburetor configurations while allowing builders to eliminate factory EFI components and simplify engine management requirements.
Designed to fit Chevrolet LS cathedral-port engines including LR4, LY2, LM7, L59, LM4, L33, LH6, LC9, LH8, LS1, LS6, LQ4, LQ9, L98, and LS2 applications, this intake manifold is ideal for muscle cars, street rods, trucks, SUVs, race vehicles, and custom LS conversion projects.
Whether you're performing an LS1 carb conversion or installing a carbureted LS engine into a classic muscle car, this black single-plane intake manifold delivers the airflow capacity, simplicity, and performance enthusiasts demand.
Single Plane Intake Manifold Technology
The Top Street Performance LS Cathedral-Port Carbureted Single Plane Intake Manifold is engineered for enthusiasts looking to convert modern LS engines to a traditional carbureted induction system. The single-plane design utilizes a common plenum layout that promotes increased airflow and performance potential while maintaining compatibility with popular 4150-style carburetors.
Performance Benefits
Designed to operate throughout the 2,500-7,000 RPM range, this single-plane intake manifold supports increased airflow demand and strong performance characteristics for street performance vehicles, hot rods, muscle cars, race applications, and LS-powered builds. The open-plenum design makes it an excellent choice for enthusiasts seeking a performance-focused carbureted induction system.
Specs
| Basic Operating RPM Range | 2,500-7,000 RPM |
| Carburetor Flange Style | 4150 Square Bore |
| Carburetor Quantity | 1 |
| Center Maximum Height | 5.417 in. |
| Color | Black |
| Deck Height | Standard |
| EGR Port | No |
| Front Maximum Height | 5.417 in. |
| Fuel System Type | Carbureted |
| Gasket Or Seal Included | Yes |
| Grade Type | Performance |
| Intake Port Shape | Cathedral |
| Material | Aluminum |
| Mounting Hole Quantity | 10 |
| Rear Maximum Height | 5.417 in. |
| Single Or Dual Plane Type | Single Plane |
Engine Fitment
COMPATIBLE WITH
CHEVROLET LS CATHEDRAL-PORT ENGINES
• 4.8L / 293 in³ (LR4, LY2)
• 5.3L / 325 in³ (LM7, L59, LM4, L33, LH6, LC9, LH8)
• 5.7L / 346 in³ (LS1, LS6)
• 6.0L / 364 in³ (LQ4, LQ9, L98, LS2)
COMMON VEHICLE APPLICATIONS
• Chevrolet Silverado
• GMC Sierra
• Chevrolet Camaro
• Chevrolet Corvette
• Chevrolet Tahoe
• Chevrolet Suburban
• GMC Yukon
• Chevrolet Avalanche
• Escalade
• Pontiac GTO
NOTES
• Fits Chevrolet LS cathedral-port engines only
• Designed for carbureted fuel systems
• Single-plane intake manifold design
• 4150 square-bore carburetor flange
• Supports the published 2,500-7,000 RPM operating range
• Verify carburetor, ignition, fuel system, distributor, and hood clearance compatibility before installation
• Not compatible with LS3, L92, L99, L94, L9H, L76, LY6, L96, LS7, LS9, LSA, or Gen V LT cylinder heads
Q&A
What engines is this intake manifold designed for?
This intake manifold fits Chevrolet LS cathedral-port engines including LS1, LS6, LS2, LM7, LQ4, LQ9, and other compatible cathedral-port applications.
Will this intake manifold fit an LS1 engine?
Yes. LS1 applications are specifically supported.
Will this intake manifold fit an LS6 engine?
Yes. LS6 applications are specifically supported.
Will this intake manifold fit an LS2 engine?
Yes. LS2 applications are specifically supported.
Will this intake manifold fit a 5.3L LS engine?
Yes. Supported 5.3L applications include LM7, L59, LM4, L33, LH6, LC9, and LH8 engines.
Will this intake manifold fit a 6.0L LS engine?
Yes. Supported 6.0L applications include LQ4, LQ9, L98, and LS2 engines.
What is the advantage of a single-plane intake manifold?
A single-plane intake manifold uses a common plenum design that supports increased airflow demand and performance-oriented engine combinations.
What RPM range is this intake manifold designed for?
This intake manifold is designed to operate throughout the manufacturer's published 2,500-7,000 RPM range.
Is this intake manifold designed for carbureted applications?
Yes. This intake manifold is specifically designed for carbureted LS engine conversions.
Can I convert my LS engine from EFI to a carburetor with this intake?
Yes. This intake manifold is designed to support carbureted conversions on compatible cathedral-port LS engines.
Will this intake fit LS3 cylinder heads?
No. LS3, L92, L99, L94, L9H, L76, LY6, and L96 rectangle-port cylinder heads are not compatible.
Emissions Notice
This Top Street Performance (TSP) product is designed for racing and off-road competition use only. It is not legal for use on public roads or emissions-controlled vehicles and does not comply with federal, state, or local emissions regulations. The buyer assumes all responsibility for legal use and installation.
What is a Emissions-Controlled Vehicle?
"An emissions-controlled vehicle is any vehicle equipped with a factory-installed emissions control system designed to reduce air pollution. These systems include catalytic converters, oxygen sensors, EGR (Exhaust Gas Recirculation) valves, and diesel particulate filters (DPF). Most vehicles manufactured after 1975 are considered emissions-controlled and must comply with federal and state emissions laws when used on public roads."
GM LS Cathedral Port Carbureted Single Plane Aluminum Intake Manifold - Black
Upgrade your LS-powered build with the Top Street Performance GM LS Cathedral-Port Carbureted Single Plane Aluminum Intake Manifold. Designed for Chevrolet LS cathedral-port engines, this black aluminum intake manifold provides a straightforward solution for LS carburetor conversions, performance street vehicles, hot rods, muscle cars, and custom LS swap projects.
Engineered with a single-plane runner design, this LS carbureted intake manifold is optimized to support increased airflow demand throughout the 2,500-7,000 RPM operating range. The open-plenum design promotes efficient airflow distribution, making it an excellent choice for naturally aspirated and power-adder combinations seeking improved induction performance.
Constructed from lightweight aluminum with a black finish, this intake manifold provides durability, corrosion resistance, and a clean performance appearance. The 4150 square-bore carburetor flange supports popular 4-barrel carburetor configurations while allowing builders to eliminate factory EFI components and simplify engine management requirements.
Designed to fit Chevrolet LS cathedral-port engines including LR4, LY2, LM7, L59, LM4, L33, LH6, LC9, LH8, LS1, LS6, LQ4, LQ9, L98, and LS2 applications, this intake manifold is ideal for muscle cars, street rods, trucks, SUVs, race vehicles, and custom LS conversion projects.
Whether you're performing an LS1 carb conversion or installing a carbureted LS engine into a classic muscle car, this black single-plane intake manifold delivers the airflow capacity, simplicity, and performance enthusiasts demand.
Single Plane Intake Manifold Technology
The Top Street Performance LS Cathedral-Port Carbureted Single Plane Intake Manifold is engineered for enthusiasts looking to convert modern LS engines to a traditional carbureted induction system. The single-plane design utilizes a common plenum layout that promotes increased airflow and performance potential while maintaining compatibility with popular 4150-style carburetors.
Performance Benefits
Designed to operate throughout the 2,500-7,000 RPM range, this single-plane intake manifold supports increased airflow demand and strong performance characteristics for street performance vehicles, hot rods, muscle cars, race applications, and LS-powered builds. The open-plenum design makes it an excellent choice for enthusiasts seeking a performance-focused carbureted induction system.
COMPATIBLE WITH
CHEVROLET LS CATHEDRAL-PORT ENGINES
• 4.8L / 293 in³ (LR4, LY2)
• 5.3L / 325 in³ (LM7, L59, LM4, L33, LH6, LC9, LH8)
• 5.7L / 346 in³ (LS1, LS6)
• 6.0L / 364 in³ (LQ4, LQ9, L98, LS2)
COMMON VEHICLE APPLICATIONS
• Chevrolet Silverado
• GMC Sierra
• Chevrolet Camaro
• Chevrolet Corvette
• Chevrolet Tahoe
• Chevrolet Suburban
• GMC Yukon
• Chevrolet Avalanche
• Escalade
• Pontiac GTO
NOTES
• Fits Chevrolet LS cathedral-port engines only
• Designed for carbureted fuel systems
• Single-plane intake manifold design
• 4150 square-bore carburetor flange
• Supports the published 2,500-7,000 RPM operating range
• Verify carburetor, ignition, fuel system, distributor, and hood clearance compatibility before installation
• Not compatible with LS3, L92, L99, L94, L9H, L76, LY6, L96, LS7, LS9, LSA, or Gen V LT cylinder heads
SPECIFICATIONS:
Basic Operating RPM Range: 2,500-7,000 RPM
Carburetor Flange Style: 4150 Square Bore
Carburetor Quantity: 1
Center Maximum Height: 5.417 in.
Color: Black
Deck Height: Standard
EGR Port: No
Front Maximum Height: 5.417 in.
Fuel System Type: Carbureted
Gasket Or Seal Included: Yes
Grade Type: Performance
Intake Port Shape: Cathedral
Material: Aluminum
Mounting Hole Quantity: 10
Rear Maximum Height: 5.417 in.
Single Or Dual Plane Type: Single Plane
