SPEEDMASTER 1-147-105-03 Midrise Air Dual Plane Carby 840136569749 4150

( Brand: Speedmaster ), ( Manufacturer Part Number: 1-147-105-03 ), ( Return Notes: New, Unused Condition W/original Packaging ), ( UPC: 840136569749 )

Review SPEEDMASTER Midrise Air Dual Plane 4150 Carby Black Chevy fits LS3

Introducing the Speedmaster 1-147-105-03 midrise air dual plane intake manifold for the Chevy LS3 engine, a high-performance solution designed to enhance the power and efficiency of your engine. This intake manifold, manufactured by Holley, is a meticulously crafted component that utilizes advanced engineering to deliver optimal airflow and fuel distribution.

The midrise design of this intake manifold offers a number of benefits, including improved clearance for aftermarket components such as tall valve covers or high-rise intake runners. The midrise design also allows for a more direct route for air to travel from the intake to the cylinders, reducing losses and increasing power.

This intake manifold is a dual plane design, which means it features two separate plenum chambers. Each plenum chamber is specifically designed to optimize airflow to each bank of cylinders, ensuring an even and efficient fuel-air mixture for maximum power output. The dual plane design also helps to reduce intake turbulence, improving combustion efficiency and reducing engine knocking.

The Speedmaster 1-147-105-03 intake manifold is CNC-machined from 6061-T6 aluminum, ensuring a high degree of precision and durability. It features a polished finish that not only looks great but also helps to reduce intake air temperature, improving engine performance. The manifold also utilizes Holley's proprietary port-matching technology, ensuring a perfect fit and optimal flow rate for your LS3 engine.

This intake manifold is designed for use with Chevy LS3 engines, and is a direct replacement for the factory intake manifold. It comes complete with all necessary hardware, including gaskets and bolts, making installation a straightforward process. The manifold also features integrated throttle bodies, which can be ordered separately to complete the intake system.

With its advanced design, meticulous construction, and proven performance, the Speedmaster 1-147-105-03 midrise air dual plane intake manifold is an essential upgrade for any Chevy LS3 engine looking to maximize power and efficiency.

The Chevrolet LS3 engine is a high-performance powerplant that is widely used in custom builds and performance applications. One popular accessory for LS3 engines is the Holley 1-147-105-03 Midrise Air Dual Plane Carburetor. In this discussion, we will explore the pros and cons of using this particular carburetor for an LS3 engine.

1. Fuel Efficiency: Holley Carburetors are known for their fuel efficiency. The Midrise Air Dual Plane 4150 model is no exception. It provides excellent fuel atomization, ensuring that the engine receives the optimal fuel-air mixture for efficient combustion.

2. Adjustability: This carburetor offers a high degree of adjustability, allowing you to fine-tune the air-fuel ratio to suit your specific engine and driving conditions. This is crucial for achieving optimal engine performance.

3. Durability: Holley Carburetors are built to last. They use high-quality materials and robust construction techniques, ensuring that the carburetor can handle the rigors of high-performance driving.

4. Easy Installation: Installing the Holley Midrise Air Dual Plane Carburetor is relatively straightforward. The kit includes all necessary hardware, making the installation process easier.

1. Complexity: Due to its adjustability and dual-plane design, the Holley Midrise Air Dual Plane Carburetor can be more complex to set up and tune compared to a single-plane carburetor. It may require additional time and expertise to get it dialed in correctly.

2. Cost: The Holley Midrise Air Dual Plane Carburetor is more expensive than some other options on the market. However, its superior fuel efficiency, adjustability, and durability may justify the additional cost for those seeking high-performance results.

3. Maintenance: Like any carburetor, the Holley Midrise Air Dual Plane Carburetor requires regular maintenance. This includes keeping the float bowls filled with the correct fuel mixture, cleaning or replacing the air filter, and ensuring the idle mixture is set correctly.

In conclusion, the Holley 1-147-105-03 Midrise Air Dual Plane Carburetor is an excellent choice for those seeking optimal performance from their Chevrolet LS3 engine. Its fuel efficiency, adjustability, durability, and ease of installation make it a popular choice among enthusiasts. However, its complexity and higher cost compared to other options should be considered. Ultimately, if you are willing to invest the time and resources into setting it up correctly, the Holley Midrise Air Dual Plane Carburetor can provide significant performance benefits for your LS3 engine.

If you are looking for a high-performance carburetor for your Chevrolet LS3 engine and are willing to invest the time and resources into setting it up correctly, the Holley 1-147-105-03 Midrise Air Dual Plane Carburetor is an excellent choice. Its fuel efficiency, adjustability, durability, and ease of installation make it a popular choice among enthusiasts. However, be prepared for the added complexity and higher cost compared to other options. If you are new to carburetors or looking for a simpler solution, you may want to consider a single-plane carburetor or an electronic fuel injection system.

Details:

This feature is sometimes called an air gap design. MPN: 1-147-105-03. Condition: New. Brand: Speedmaster.

Items must be New, Unused, Not Installed, in the Original Packaging and able to resold. Cast from steel molds for a tighter grain and reduction of porosity Pressure tested to ensure maximum performance. Open area under the plenum chamber air gap design.

Domestic Shipping: The shipping cost on this listing or the Free Shipping is for lower 48 States. The air flowing under the plenum provides a cooler charge for incoming with less heat transfer from engine. The main difference is that there an open area under the plenum chamber. Manufacturer: Speedmaster.

Chevy GM LS3 MidRise Air Dual Plane 4150 Carby Manifold Black The Speedmaster design features the identical plenum and runner as normal.

part #: 114710503 prices

• $354.00-$372.63

specifications inputmanifolds:

• for models: Ls3
• for makes: Chevy
• brand: Speedmaster
• manufacturer part number: 1-147-105-03
• return notes: New, Unused Condition W/original Packaging
• upc: 840136569749

returns inputmanifolds:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

general inputmanifolds:

• Car Truck Parts Accessories > Air Fuel Delivery > Intake Manifolds
• condition: New

seller inputmanifolds:

• # reviews: 182854
• city: Grant, Michigan
• rating: 99.5%

payments inputmanifolds:

• wallet: Google-pay
• credit card: Diners-club
• other

offer inputmanifolds:

• options: Ship-to-home
• sold: 0
• started: June 10, 2026
• availability: In Stock

shipping inputmanifolds:

• transit: 2-6 Days
• service: Expedited
• type: Fixed
• cost: $0.00
• class: Expedited

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