HOLLEY EFI 300-658BK Intake Manifold 090127104927

( Brand: Holley Efi ), ( Type: Air Induction Fuel Delivery Gt; Intake Manifolds ), ( Manufacturer Part Number: 300-658BK ), ( UPC: 090127104927 )

Review HOLLEY EFI Hi ram Intake Manifold Black fits RAM

The Holley EFI 300-658BK Hi-Ram Intake Manifold is a high-performance intake solution designed for carburetor-to-EFI conversions, offering improved airflow and enhanced fuel delivery for increased power and efficiency. This manifold is suitable for small-block Chevrolet and GM applications.

This manifold features a Hi-Ram design, which utilizes a large, single-plane intake runner that can improve the engine's airflow and oxygen sensation for greater combustion efficiency. The large runners provide a more substantial velocity stack effect, enhancing low-end and mid-range power.

The manifold is constructed from high-quality aluminum, which not only reduces weight but also ensures excellent heat rejection and durability. It fits small-block Chevrolet and GM engines with a factory 4-bolt or 5-bolt main stud bore pattern, making it a versatile solution for a wide range of applications.

The manifold comes equipped with integral upper and lower gaskets, ensuring a perfect seal and easy installation process. Holley has also designed this manifold with an opening for electronic throttle control, compatibility with most EFI throttle bodies and Powerglide transmissions, making it an excellent choice for those wanting a seamless conversion from carburetion to fuel injection.

Additionally, the 300-658BK intake manifold has fuel rails already integrated into its design for ease of use during the EFI installation process. The rails are Euro-style, so they can accommodate EFI fuel systems that utilize common -6 AN fittings. This feature saves time and resources during the conversion, making the installation process even more straightforward.

The Holley EFI 300-658BK Hi-Ram Intake Manifold is a premium product that offers enhanced performance and an easy installation process for those wanting to upgrade their small-block Chevrolet or GM engines from carburetion to fuel injection. Its large Hi-Ram design, versatile compatibility, and integrated fuel rails make it a top choice for enthusiasts seeking optimal power gains and efficiency improvements.

Pros and Cons of Buying a Holley EFI 300-658BK Hi-Ram Intake Manifold for Your Engine

The Holley EFI 300-658BK Hi-Ram Intake Manifold is a popular aftermarket intake system among performance enthusiasts. It's designed to deliver increased horsepower and torque for various applications. This article aims to provide an unbiased analysis of the advantages and disadvantages of investing in this intake manifold.

1. Increased Horsepower and Torque: Holley's 300-658BK hi-ram intake manifold is known for its ability to improve engine performance. It facilitates a more efficient airflow into the engine, which leads to a significant boost in horsepower and torque. The increased flow rate benefits both naturally aspirated and forced induction engines.

2. Fuel Efficiency: The Holley EFI system is designed to provide precise fuel delivery and matching airflow, resulting in enhanced fuel efficiency. This translates to reduced fuel consumption and, ultimately, cost savings and a smaller carbon footprint.

3. Wide Compatibility: This intake manifold is compatible with various engine types and sizes, including small-block Chevy, Ford, and Cadillac engines. It is also suitable for both carbureted and fuel-injected applications.

4. Easy Installation: Holley intake manifolds typically come with detailed instructions and all the necessary hardware for installation. The manifolds are usually CNC-machined for exceptional fitment, ensuring a hassle-free installation process.

5. Improved Throttle Response: The Holley EFI system features an innovative throttlebody design that ensures quick response and improved throttle sensitivity. This enhances driving experience and responsiveness.

1. Higher Cost: Compared to traditional carburetors or stock intake manifolds, the Holley EFI 300-658BK Hi-Ram Intake Manifold can be quite expensive. This investment may not be suitable for those on a tight budget.

2. Complex Setup: The Holley EFI system requires accurate tuning to optimize fuel delivery and airflow for optimal engine performance. This can be a time-consuming process and may demand professional assistance for those without the necessary expertise or tools.

3. Ongoing Maintenance: A fuel injection system like the Holley EFI requires more maintenance than a carbureted engine due to the complex nature of the system. Regular checks and tune-ups are essential to ensure the engine runs smoothly and efficiently.

In summary, the Holley EFI 300-658BK Hi-Ram Intake Manifold offers several advantages, such as increased horsepower and torque, fuel efficiency, wide compatibility, and improved throttle response. However, it comes with some drawbacks, including a higher cost, complex setup, and ongoing maintenance requirements. Ultimately, the decision to invest in such an intake manifold depends on individual priorities, preferences, and the specific requirements of your engine application. For those seeking superior power and efficiency, these features might be well worth the investment. Conversely, those with a limited budget or minimal interest in complex systems may want to explore other options.

Details:

Using this Hi-Ram intake with high flowing Gen III Hem cylinder heads has outstanding potential for naturally aspirated forced induction applications. Manifold Base Available Separately for Custom Induction Systems. The Holley Hi-Ram intake manifold is for high-performance applications where induction system height not limited. Cast Aluminum Construction w/ Natural Satin or Black Finish.

Holley EFI 300-658BK Hi-Ram Intake Manifold - Black. O-Ring Seal to Head Large Retained O-rings Offer Superior Original Equipment OE Sealing Are Easy Replace. Runner length and the Tapered Cross Section designed to Perform Well for a Wide Range of Engine Configurations. Compatible with 2009 up 5.7L, 2005 2010 6.1L, and 2011 up 6.4L Mopar Gen 3 Hem 80mm or 92mm Throttle Body.

Cast-In Pads for Adding Notorious Nozzles. Buyer pays return shipping. Billet Oil Fill Cap Attractive Low Profile Design. The base is designed to be modular in configuration accept a wide range of EFI tops and attractive builders fabricators as the foundation for custom induction systems.

The EFI fuel rails are machined for 8AN O-ring fittings with passages large enough to accommodate high flow and dampen pressure pulsations in the system come standard Hi-Ram kits. Positive Crankcase Ventilation PVC Ports w/ Adapter Fittings. Add Even More Power to the Gen III Hem Engine with a Holley Hi-Ram Intake Manifold. This cast intake manifold has large ports - fits 2009 up 5.7L, 2005 2010 6.1L 2011 up 6.4L engines.

part #: 300658bk price

• $1549.95

specifications inputmanifolds:

• for models: Ram
• brand: Holley Efi
• type: Air Induction Fuel Delivery Gt; Intake Manifolds
• manufacturer part number: 300-658BK
• upc: 090127104927

shipping inputmanifolds:

• service: UPS Ground
• type: Fixed
• class: Standard
• transit: 4-7 Days
• cost: $0.00
• carrier: UPS

general inputmanifolds:

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

offer inputmanifolds:

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

seller inputmanifolds:

• rating: 99.2%
• # reviews: 46344
• city: Bowling Green, Kentucky

returns inputmanifolds:

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

payments inputmanifolds:

• other
• wallet: Paypal
• credit card: Visa

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