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Holley EFI  |  SKU: 300-127

Holley 300-127 Mid-Rise Intake - GM LS1/LS2/LS6 w/ 105mm Top

Holley Mid-Rise Intake for GM LS1/LS2/LS6 platform engines

Regular price $2,314.80 NZD + GST
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⚠ Special Order Item — ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7–20 days shipping.

Description

Holley Mid-Rise Intake for GM LS1/LS2/LS6 platform engines

Part Number: 300-127

The Modular Mid-Rise intake utilizes the popular Holley LS1/LS2/LS6 cathedral port Mid-Rise 2 x 4 intake manifold along with a purpose built plenum base adapter and a Holley 105MM EFI plenum top which converts it into a Mid-Rise EFI intake manifold. With a max overall height of only 10.44", the Mid-Rise manifold is an excellent choice for street and performance street/strip applications with a powerband from 1,500-6,500 RPM and limited hood clearance. It's perfect for turbocharged, or normally aspirated applications. This manifold is modular, and the plenum adapter (PN 300-267) will accept all of the popular Holley LS Hi-Ram plenum tops as a foundation for custom induction systems. *** The front and rear height measurements listed in the Specs section are referencing the overall height with the top plate installed. Please see the diagrams in the product images for other dimensions.

Features and Benefits

• Power band from 1500-6500 rpm
• Provides great performance to 6500 rpm for street/strip performance applications while providing the look of a racing EFI intake manifold
• Intended for use on all GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads (recalibration of the ECU may be required when using this intake manifold design with OE ECU).
• Unique modular design allows the combination of a traditional dual-plane layout with an EFI manifold plenum to produce great mid-range torque without compromising top end power
• Great for supercharged or turbocharged engines
• May require an aftermarket hood for some vehicle applications.
• Cast aluminum construction
• 105MM EFI plenum top

Recalibration of the ECU may be required when using this intake manifold design with OE ECU. _x000D_ _x000D_ Holley EFI LS main harnesses have a map sensor connecter designed for use with an LS1/2 style map sensor. The 558-416 is an adapter harness that can be used to adapt any LS harness that uses a LS1/2 MAP sensor connection to a LS3 MAP, which is recommended for this manifold. NOTE: these manifolds & fuel rails are designed to accept Bosch Style EV-1 or Magneti Marelli Pico fuel injectors (OE LS fuel injectors may not fit properly in the intake manifold & fuel rail assembly). _x000D_ _x000D_ *** The front and rear height measurements listed in the Specs section are referencing the overall height with the top plate installed. Please see the diagrams in the product images for other dimensions.

Specifications

  • Specifications
    Basic Operating RPM Range2500-7000
    BrandHolley EFI
    Carburetor FlangeN/A
    Carburetor QuantityN/A
    Carburetor Studs IncludedN/A
    CategoryEngine
    CNC PortedNo
    ColorSilver
    ConstructionCast
    Cylinder Head Port ShapeCathedral
    Deck Height9.24
    EGR PortNo
    Emission Code4
    EngineGM LS1/LS2/LS6
    Flange StyleEFI
    Front Maximum Height10.44
    Fuel Injectors IncludedNo
    Fuel Rail(s) IncludedYes
    Fuel System TypeEFI
    Gasket Or Seal IncludedYes
    Grade TypePerformance
    Intake Port Gasket(s) IncludedNo
    Manifold TypeMid Rise
    MaterialAluminum
    Nitrous Bung(s) IncludedNo
    part typeEngine Intake Manifold
    Plenum FinishNatural
    Product TypeIntake Manifold
    Rear Maximum Height9.99
    Recommended UseForced Induction
    Removable RunnersNo
    Removable Top/LidYes
    Single Or Dual Plane TypeSingle Plane
    Sub CategoryCylinder Block Components
    Throttle Body Bore Diameter105 MM
    Throttle Body Gasket IncludedYes
    Throttle Body IncludedNo
    Vacuum PortsYes
    WarningCalifornia Proposition 65
    WarrantyManufacturer's Limited 90 Day Warranty
  • Instructions

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