Convert your LS-powered build to a traditional carbureted induction system with the Top Street Performance GM LS Rectangle-Port Carbureted Dual Plane Aluminum Intake Manifold. Designed for Chevrolet LS rectangle-port engines, this polished aluminum intake manifold provides a simple and effective solution for LS carburetor conversions, street performance builds, muscle cars, hot rods, and custom engine swaps.

Engineered with a dual-plane runner design, this LS carbureted intake manifold is optimized to deliver strong throttle response, excellent drivability, and balanced power throughout the 1500-6500RPM operating range. The dual-plane configuration helps improve low- and mid-range performance, making it an excellent choice for street-driven vehicles and performance applications seeking broad power delivery.

Constructed from lightweight aluminum with a polished finish, this intake manifold provides durability, corrosion resistance, and a clean performance appearance. The square-bore carburetor flange supports popular carburetor configurations while allowing builders to eliminate factory EFI components and simplify engine management requirements.

Designed for Chevrolet LS rectangle-port engines including LS3, L92, L99, LY6, and L76 rectangle-port applications, this intake manifold is ideal for classic muscle cars, street rods, hot rods, trucks, and custom LS swap projects.

Whether you're performing an LS carb conversion, building a street-driven LS3-powered vehicle or installing a carbureted LS engine into a classic car, this polished dual-plane intake manifold delivers the drivability, simplicity, and performance enthusiasts demand.

Dual Plane Intake Manifold Technology
The Top Street Performance LS Rectangle-Port Carbureted Dual Plane Intake Manifold is engineered for enthusiasts looking to convert modern LS engines to a traditional carbureted induction system. The dual-plane design separates intake runners to help improve mixture distribution and street-friendly performance while maintaining excellent drivability.

Performance Benefits
Designed to operate throughout the manufacturer's published 1,500-6,500 RPM range, this dual-plane intake manifold delivers strong low-end response, broad mid-range power, and excellent street performance characteristics. Its design makes it an ideal choice for cruising, weekend performance vehicles, street rods, hot rods, and classic muscle car LS swap projects.

COMPATIBLE WITH
CHEVROLET LS RECTANGLE-PORT ENGINES
• 6.0L / 364 in³ (LY6, L76, L96)
• 6.2L / 376 in³ (LS3, L92, L99)
Rectangle-port applications only

COMMON VEHICLE APPLICATIONS
• Chevrolet Camaro SS (LS3, L99)
• Chevrolet Corvette (LS3)
• Escalade (L92)
• Chevrolet Silverado 2500HD / 3500HD (LY6, L96)
• GMC Sierra 2500HD / 3500HD (LY6, L96)
• Chevrolet Suburban 2500 (LY6)
• GMC Yukon XL 2500 (LY6)
• Pontiac G8 GXP (LS3)
• Chevrolet SS (LS3)

NOTES
• Fits Chevrolet LS rectangle-port engines only
• Designed for carbureted fuel systems
• Dual-plane intake manifold design
• Square-bore carburetor flange configuration
• Verify carburetor, distributor, fuel system, and hood clearance compatibility before installation
• Not compatible with LS1, LS2, LS6, LR4, LM7, LQ4, LQ9, or other cathedral-port cylinder heads

SPECIFICATIONS:
Basic Operating RPM Range: 1,500-6,500 RPM
Carburetor Flange Style: 4150 Square Bore
Carburetor Quantity: 1
Color: Satin
Deck Height: Standard
EGR Port: No
Front Maximum Height: 5.070 in.
Fuel System Type: Carbureted
Gasket Or Seal Included: Yes
Grade Type: Performance
Intake Port Shape: Rectangle
Material: Aluminum
Mounting Hole Quantity: 10
Rear Maximum Height: 6.140 in.
Single Or Dual Plane Type: Dual Plane