Polished Aluminum Dual Plane Air Gap Intake Manifold for Small Block Chevy 1956–1995

Street/High-Performance Intake Manifold with 4150/4160 Square-Bore Carburetor Flange

Upgrade your Small Block Chevrolet engine with this Polished Aluminum Dual Plane Air Gap Intake Manifold. Designed for compatible 1956–1995 SBC engines, including 262, 265, 305, 307, 327, 350, and 400 applications, this manifold combines a dual-plane air gap design with a polished cast aluminum construction.

Engineered for street and high-performance applications, it features a 4150/4160 square-bore carburetor mounting pattern and a specified operating RPM range of 1,500–6,500. The 4.8-inch intake height and polished natural finish make it a practical performance upgrade for compatible Small Block Chevy builds.

Key Features

• Small Block Chevy Compatibility: Designed for compatible 1956–1995 SBC engines, including 262, 265, 305, 307, 327, 350, and 400.

• Dual Plane Air Gap Design: Features a dual-plane air gap intake configuration.

• Street/High-Performance Application: Designed for street and high-performance engine builds.

• 4150/4160 Carburetor Pattern: Compatible with square-bore 4150/4160 carburetor mounting configurations.

• 1,500–6,500 RPM Range: Specified operating range for performance applications.

• Polished Cast Aluminum: Manufactured from cast aluminum with a polished natural finish.

• 4.8-Inch Intake Height: Provides a specified manifold height of 4.8 inches.

Product Features & Specifications

Compatible Small Block Chevy Applications

Designed for compatible Chevrolet Small Block engines:

• 262 SBC

• 265 SBC

• 305 SBC

• 307 SBC

• 327 SBC

• 350 SBC

• 400 SBC

Fitment Note: Verify your engine configuration, cylinder head compatibility, carburetor mounting pattern, and available hood clearance before ordering.

Dual Plane Air Gap Design

This intake manifold features a dual-plane air gap configuration designed for street and high-performance Small Block Chevy applications. Its specified operating range of 1,500–6,500 RPM makes it suitable for a range of performance-oriented engine setups.

Polished Cast Aluminum Construction

Manufactured from cast aluminum, this intake manifold combines a durable construction with a polished natural finish. The polished appearance provides a clean, performance-focused look for classic Chevrolet engine bays and custom builds.

Carburetor Compatibility

The manifold features a 4150/4160 square-bore carburetor bolt pattern, designed for compatible square-bore carburetor configurations.

Frequently Asked Questions

Which engines does this intake manifold fit?
It is designed for compatible Small Block Chevy engines from 1956–1995, including 262, 265, 305, 307, 327, 350, and 400 applications.

Is this a single-plane or dual-plane intake manifold?
It features a dual-plane air gap design.

What carburetor mounting pattern does it use?
It uses a 4150/4160 square-bore carburetor bolt pattern.

What is the operating RPM range?
The specified operating range is 1,500–6,500 RPM.

What is the intake manifold height?
The listed intake manifold height is 4.8 inches.

What material and finish does it have?
It is made from cast aluminum with a polished natural finish.

Is this manifold suitable for street applications?
Yes. It is designed for street and high-performance applications.

Fitment & Installation Notes

• Designed for compatible 1956–1995 Small Block Chevrolet engines.

• Confirm engine displacement and cylinder head compatibility before ordering.

• Requires a compatible 4150/4160 square-bore carburetor configuration.

• Check the 4.8-inch manifold height against available hood and engine-bay clearance.

• Verify supporting fuel-system and installation requirements for your specific build.

WARNING: RACE / COMPETITION USE ONLY

This part is built and sold only for racing vehicles used solely in closed-course competition. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. Off-road or off-highway use is not competition use. Installing this part on a vehicle used on public roads may violate the federal Clean Air Act, 42 U.S.C. 7522(a)(3), and state law, and may result in civil or criminal penalties, failed inspections and loss of registration. Emissions laws vary by state. Check yours before you buy.

NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. THE SALE, USE OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. 7522(a)(3)).