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Holley EFI  |  SKU: 300-276

Holley 300-276 HOLLEY EFI 4150 SINGLE PLANE FUEL INJECTION INTAKE MANIFOLD

EFI Single Plane Intake Manifold Small Block Ford 289-347

Regular price $1,178.20 NZD + GST
Shipping calculated at checkout.
⚠ Special Order Item — ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7–20 days shipping.

Description

EFI Single Plane Intake Manifold Small Block Ford 289-347

Part Number: 300-276

The new single plane intake manifolds are designed to provide a broad RPM powerband for high-performance street/strip engine applications to a maximum engine speed of 7500 RPM. The EFI manifold is designed to work with 4150 Style Throttle body EFI systems like the Holley 4150 style flange Universal Throttle Bodies. These intake manifolds are designed to accept most stock hardware and accessory brackets, but offer performance features like better plenum and runner geometry for improved charge airflow. The isolated design of the air/fuel passages helps to increase charge air density and performance. The 300-276 EFI manifold includes black anodized fuel rails and rail bracket assortment for an easy installation with the injectors that you choose to use for your combination. The intake manifolds are designed for use with 289-347 cubic inch Small Block Ford engines 8.2" deck height.

Features and Benefits

• Includes fuel rail mounting brackets in two sizes for more options in fuel injectors (EFI Model)
• Anodized aluminum fuel rails with laser-etched logo (EFI model) 6AN
• Height: front 5.58ā€, rear 6.40ā€
• 4150 square bore mounting flange
• Extra material allows for porting to 2.00ā€ height, 1.20ā€ width
• Accessory ports under the carburetor in 1/8 NPT, 1/4 NPT and 3/8 NPT sizes
• Port size: 1.82ā€ height, 1.04ā€ width
• Single plane design with isolated plenum for cooler charge air temperatures
• Power band: 2500-7500 RPM

Specifications

  • Specifications
    Basic Operating RPM Range2500-7500
    BrandHolley EFI
    Carburetor Flange4150 Square Bore
    Carburetor Quantity1
    Carburetor Studs IncludedNo
    CategoryEngine
    CNC PortedNo
    ColorNatural
    ConstructionCast
    Cylinder Head Port ShapeRectangle
    Deck Height8.2
    EGR PortNo
    Emission Code3
    EngineFord Small Block
    Flange Style4150 Square Bore
    Fuel Injectors IncludedNo
    Fuel Rail(s) IncludedYes
    Fuel System TypeEFI
    Gasket Or Seal IncludedNo
    Grade TypePerformance
    Intake Port Gasket(s) IncludedNo
    Manifold TypeSingle Plane
    MaterialAluminum
    Nitrous Bung(s) IncludedNo
    part typeEngine Intake Manifold
    Plenum FinishNatural
    Product TypeIntake Manifold
    Removable RunnersNo
    Removable Top/LidNo
    Single Or Dual Plane TypeSingle Plane
    Sub CategoryCylinder Block Components
    Throttle Body Bore Diameter3.6
    Throttle Body Gasket IncludedNo
    Throttle Body IncludedNo
    Vacuum PortsYes
    WarningCalifornia Proposition 65
  • Instructions

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