HOLLEY 300-243 Carbureted Manifold Base 090127029152

( Brand: Holley ), ( Part Type: Manifold ), ( Material: Aluminum ), ( Item Height: 13.000 ), ( Item Length: 21.300 ), ( Item Width: 14.800 ), ( UPC: 090127029152 ), ( Manufacturer Part Number: 300-243 )

Review HOLLEY Hi ram Carbureted Manifold Base fits RAM

The Holley 300-243 Hi-Ram Carbureted Manifold Base is a high-performance intake manifold solution designed for applications requiring a 350 cubic inch Chevrolet small-block engine and a Holley 350 CFM 4-barrel carburetor. This intake manifold is engineered to deliver superior power and torque gains by utilizing Holley's Hi-Ram design, which provides enhanced intake runner geometry and increased runner volume.

The Holley 300-243 intake manifold base is constructed from aluminum, ensuring lightweight durability that is essential for high-performance applications. It features a unique, proven design with a 1 5/8-inch primary and 2-inch secondary runner size, which optimizes fuel delivery and airflow for maximum power gains.

The manifold base boasts a robust cross-over design, which eliminates the need for external crossovers and provides a cleaner, more efficient underhood appearance. It also includes a built-in water crossover and baffling, ensuring proper fuel and coolant separation for improved performance and reliability.

The Holley 300-243 Hi-Ram Carbureted Manifold Base is designed to work seamlessly with Holley's 4150 series carburetors, including the popular 350 CFM 4-barrel carburetor. It includes a factory-installed throttle shaft and cable brackets, making installation quick and easy. Additionally, it comes with pre-drilled holes for accessory mounting, allowing for easy installation of additional components such as vacuum and power steering pumps.

With its advanced design, high-quality construction, and ease of installation, the Holley 300-243 Hi-Ram Carbureted Manifold Base is an excellent choice for any enthusiast seeking to maximize the power and performance of their 350 cubic inch Chevrolet small-block engine. Whether you're building a high-performance street machine or a race car, this intake manifold is sure to deliver the results you're looking for.

The Holley 300-243 Hi-Ram carbureted manifold base is a popular choice among classic car enthusiasts and hot rod builders for its ability to provide excellent airflow and fuel delivery for high-performance applications. However, like any other automotive component, it comes with its own advantages and disadvantages.

1. High-Performance: Holley's Hi-Ram design provides excellent vacuum and airflow, making it an ideal choice for high-performance engines.

2. Versatility: The Holley 300-243 manifold base is compatible with a wide range of Holley carburetors and intake manifolds, making it a versatile option for different engine configurations.

3. Improved Airflow: The Hi-Ram design provides a larger plenum volume than traditional intake manifolds, which results in improved airflow and better engine performance.

4. Durability: Holley manifolds are known for their durability and are made from high-quality materials, ensuring reliable operation for extended periods.

5. Customizable: Holley offers a wide range of carburetor options and intake manifold designs, allowing builders to customize their setup to meet their specific needs.

1. Cost: Holley manifolds can be more expensive than standard intake manifolds, which may be a deterrent for some builders on a tight budget.

2. Complexity: Installing a Holley manifold and carburetor setup can be more complex than a traditional intake manifold and carburetor setup, requiring more time and expertise.

3. Fuel Economy: The high-performance design of the Holley manifold may not be the most fuel-efficient option, which could be a concern for some builders.

4. Maintenance: The Holley carburetor setup may require more frequent maintenance than a fuel-injected system, which could add to the overall cost and time commitment.

The Holley 300-243 Hi-Ram carbureted manifold base is an excellent choice for builders looking to maximize engine performance and airflow in their classic car or hot rod project. With its versatility, durability, and high-performance design, it is a popular option among enthusiasts. However, it comes with some disadvantages, such as cost, complexity, fuel economy, and maintenance requirements, which builders should consider before making a purchase. Ultimately, the decision to buy a Holley manifold base depends on the builder's specific needs, budget, and level of expertise.

If you are looking for a high-performance intake manifold solution for your classic car or hot rod project and have the budget and expertise to install and maintain it, the Holley 300-243 Hi-Ram carbureted manifold base is an excellent option to consider. However, if you are on a tight budget, looking for a more fuel-efficient option, or prefer a simpler installation process, a standard intake manifold may be a better choice for you.

Details:

Buyer pays return shipping. The engineering team also re designed the water crossover passage to allow room for distributor phasing. The Hi-Ram manifold line has a new addition for the 351W Ford application. The runner length and tapered cross section design will perform well for a wide range of engine combinations.

For carbureted applications you can use MSD PN 85787 Ford 351W Distributor with Steel Gear x000D The front and rear height measurements listed in the Specs section are referencing overall top plate installed. If you are replacing the hoses between engine and heater core or changing factory fitting check to see if your application requires a flow restrict. 300-243 Holley 351W Ford Hi-Ram Carbureted Manifold Base: 9.5 Deck Intake Base. Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations Cast aluminum construction. For carbureted applications you can use MSD PN 85787 Ford 351W Distributor with Steel Gear.

part #: 300243 prices

• $749.95-$757.97

specifications inputmanifolds:

• for models: Ram
• brand: Holley
• part type: Manifold
• material: Aluminum
• item height: 13.000
• item length: 21.300
• item width: 14.800
• upc: 090127029152
• manufacturer part number: 300-243

seller inputmanifolds:

• city: USA
• rating: 98.9%
• # reviews: 73414

offer inputmanifolds:

• started: March 28, 2025
• availability: In Stock
• sold: 0
• quantity: 9
• options: Ship-to-home

shipping inputmanifolds:

• class: Standard
• cost: $0.00
• transit: 4-6 Days
• type: Fixed
• service: UPS Ground
• carrier: UPS

general inputmanifolds:

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

returns inputmanifolds:

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

payments inputmanifolds:

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

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