HOLLEY EFI 300-242BK Manifold 090127044124

( Brand: Holley Efi ), ( Part Type: Manifold ), ( Material: Aluminum ), ( Color: Black ), ( UPC: 090127044124 ), ( Manufacturer Part Number: 300-242BK )

Review HOLLEY EFI Black Ford Hi ram Manifold fits RAM 351W

The Holley EFI 300-242BK 351W Ford Hi-Ram Manifold is a high-performance intake manifold designed specifically for Ford 351 Windsor engines. This intake manifold is part of Holley's EFI (Electronic Fuel Injection) product line, which is known for delivering precise fuel delivery and exceptional power gains.

The 351W Ford Hi-Ram Manifold features a Hi-Ram design, which is a type of intake manifold that utilizes a large, domed plenum to provide increased air charge volume and improved engine breathing. The plenum is constructed from aluminum, which not only reduces weight but also helps to dissipate heat for optimal engine performance.

This intake manifold is equipped with Holley's exclusive 350 cfm EFI carburetor-replacement throttle bodies. These throttle bodies are designed to provide smooth and consistent airflow, ensuring optimal fuel delivery and power output. Additionally, they feature integrated idling circuits, which help to maintain stable idle speeds under various engine loads.

The Holley EFI 351W Ford Hi-Ram Manifold is designed to work seamlessly with Holley's EFI systems, including their EFI Avenger and HP EFI systems. It comes complete with all necessary hardware, including fuel rails, fuel injectors, and fuel pressure regulators, making installation a straightforward process for most experienced engine builders.

This intake manifold is also compatible with a wide range of Ford 351 Windsor engines, including those found in Mustang, F-150, and other Ford applications. It is designed to work with both natural aspirated and forced-induction applications, making it a versatile option for a wide range of performance builders.

In summary, the Holley EFI 300-242BK 351W Ford Hi-Ram Manifold is a high-performance intake manifold designed for Ford 351 Windsor engines. It features a Hi-Ram design for increased air charge volume, throttle bodies that provide smooth airflow, and compatibility with Holley's EFI systems for precise fuel delivery and optimal power output. It is a versatile option for performance builders seeking to maximize the potential of their Ford 351 Windsor engines.

The Holley EFI 300-242BK 351W Ford Hi-Ram Manifold is a performance-oriented fuel injection system designed for Ford 351 Windsor engines. Here are some pros and cons to help you make an informed decision about purchasing this product:

1. Improved idle quality and stability: This EFI system provides precise fuel delivery, which results in a smooth idling engine.

2. Enhanced power output: EFI systems offer better fuel efficiency and more power compared to carbureted engines. With the Holley EFI 351W, you can expect an increase in horsepower and torque.

3. Easy-to-use tuning software: Holley's EFI management system comes with user-friendly tuning software that allows easy adjustments to fuel maps, timing, and other parameters.

4. Fuel injection reliability: EFI systems are known for their reliability and durability, as they do not have the complexities of carburetors, such as vacuum secondaries, float levels, and jetting.

5. Compatibility with various sensors: The Holley EFI system can be used with various sensors for better engine management, such as temperature, pressure, and oxygen sensors.

1. Cost: EFI systems like the Holley 351W are more expensive than carburetors. The cost of the manifold, EFI system, wiring harness, and tuning software can add up.

2. Complex installation: Installing an EFI system can be more complex than installing a carburetor due to the wiring and tuning requirements.

3. Tuning expertise: To get the most out of the EFI system, some tuning knowledge is required. The tuning process can be time-consuming, especially for those new to EFI systems.

The Holley EFI 351W Ford Hi-Ram Manifold offers several advantages, including improved idle quality, increased power output, and ease of tuning. However, the cost and complexity of installation may deter some potential buyers.

If you are looking for better fuel efficiency, increased power, and a smoother idle, the Holley EFI system is a worthwhile investment. However, if you are on a tight budget or are not comfortable with the installation and tuning process, a carburetor may be a more suitable option for your 351 Windsor engine.

If you are willing to invest in the time and resources required to install and tune the Holley EFI system, it can provide significant benefits to your Ford 351 Windsor engine. However, if you are unsure about the installation process or prefer a more straightforward solution, consider sticking with a carburetor. Ultimately, the decision comes down to your personal goals, resources, and expertise.

Details:

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. The EFI 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. This manifold comes with a 105MM LS throttle body flange top, 105mm top is also available.

Warning: Many Ford vehicle model's were originally equipped with a heater core flow restrict located at either the original hose fitting in factory intake or inline inlet which protects from damage. Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations EFI fuel rails are machined 8AN O-ring Fittings with passages large enough accommodate high flows dampen pressure pulsations in system come standard Hi-Ram kits. This intake manifold is designed for use with aftermarket cylinder heads. Buyer pays return shipping.

The front and rear height measurements listed in the Specs section are referencing overall with top plate installed. 300-242BK Holley Black 351W Ford Hi-Ram EFI Manifold: 9.5 Deck Intake Manifold with 105mm LS Throttle Body Flange Top. Cast aluminum construction with black finish. The engineering team also re designed the water crossover passage to allow room for distributor phasing.

part #: 300242bk prices

• $1399.95-$1499.04

specifications inputmanifolds:

• for models: 351w, Ram
• for makes: Ford
• brand: Holley Efi
• part type: Manifold
• material: Aluminum
• color: Black
• upc: 090127044124
• manufacturer part number: 300-242BK

general inputmanifolds:

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

seller inputmanifolds:

• rating: 98.6%
• city: Bowling Green, Kentucky
• # reviews: 14404

offer inputmanifolds:

• started: March 27, 2025
• options: Ship-to-home
• availability: In Stock
• quantity: 10
• sold: 0

returns inputmanifolds:

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

payments inputmanifolds:

• wallet: Apple-pay
• credit card: Visa
• other

shipping inputmanifolds:

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

Holley Efi 300-242BK Is Similar To:

• Weiand 2991-2993 Big Block Chev 2991 2993 Tunnel Ram Holley Dominator Top (20.8% similar) Weaned dominate 4500 tunnel ram top used good condition 2991 2993...(June 3rd, 2024)
• Holley 300-120 Ls Carbureted Manifold 2x4 Dual Plane (45.3% similar) Cast aluminum construction. The dual-plane equal-distribution layout produces great mid-range torque without compromising top end power. Appropriate for any street/performance, muscle car, or street rod enthusiast. Holley 300-120 ls carburetors manifold - 2X4 dual plane. The Holley gm...(June 4th, 2024)
• Holley 300-213 Hi-ram Lower Manifold Gm Ls3 l92 (57.4% similar) 300-213 Holley hi-ram lower manifold - gm LS3/L92: carburetors base only plenum-top-mounting fabrication flange available ;plenum top gasket type 3/32 round o-ring cord; mounting standard LS3 molded o-ring; port size 2.49 height x 1.21 wide; runner length 6.50, as-cast cross-sectional area...(June 6th, 2024)
• Holley 300-132bk Single Plane Intake Gm Ls1 ls2 ls6 Black (36% similar) 300-132BK Holley single plane intake - gm LS1/LS2/LS6 black: black ceramic coated, carburetors plane intake manifold. Buyer pays return shipping. A signature is required on all ups orders over $750. Fits all gm ls gen iii or iv engines equipped with LS1/LS2/LS6 cathedral port cylinder heads...(June 6th, 2024)
• Holley 508-32 Hardware Kit For Split Intake-black (29.7% similar) Buyer pays return shipping. A signature is required on all ups orders over $750...(June 7th, 2024)
• Holley 508-34 Replacement Hardware And Bracket Kit Ls3 Black (30.4% similar) Buyer pays return shipping. Replacement Hydra and Bret kit LS3 black. A signature is required on all ups orders over $750...(June 7th, 2024)
• Holley 300-113 Hi-ram Intake Gm Ls3 l92 (47.3% similar) Coupling this hi-ram intake with the high flowing LS3/L92 cylinder heads has outstanding potential for n/a and forced induction applications at a budget-minded cost. The base is designed to be modular in configuration accept a wide range of carburetors and Efi tops attractive builders...(June 8th, 2024)
• Holley 300-226 Hi Compatible With replacement For Ram Itake Base Carb Ls1 ls2 ls6 (40% similar) Style: tunnel ram. Operating range high: 8000 rpm. Port size height : 2.49 in. Engine deck: oem. Hardware included: no. Holley hi ram intake base - carb LS1/LS2/LS6 300-226. Base only: yes. Cast/fabricated: cast. Gaskets included: no. Finish: natural. Material: aluminum...(June 8th, 2024)
• Holley 300-226bk Hi-ram Lower Manifold Gm Ls1 ls2 ls6-black (54.9% similar) A signature is required on all ups orders over $750. Buyer pays return shipping. 300-226BK Holley hi-ram lower manifold - gm LS1/LS2/LS6-BLACK: LS1/LS2/LS6 cathedral port carburetors base only plenum-top-mounting fabrication flange available ;port size 2.49 height x 1.21 wide; mounting gasket...(June 9th, 2024)
• Holley 300-303 86-95 Mustang Gt 5.0 Sbf Hi-ram Intake Manifold Top Plate 95mm (45% similar) It is in perfect working order. All threaded holes and gasket surfaces are perfect. Shipping is free of charge. 1986 -1995 mustang 5.0L Holley 95MM hi-ram side mount top plate. Please view the pictures provided as it will come exactly shown...(June 15th, 2024)
• Chevrolet 3886948 Camaro Corvette Chevelle Bbc Intake Manifold Holley (29.8% similar) This is the original Holley iron manifold by Chevrolet. Original on my 68 375 horse Camry but was used the shovelled corvette high oval port motors...(June 27th, 2024)