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Holley EFI LS Hi-Ram Intake Manifold

Manufacturer

Picture for manufacturer Holley EFI

Part Number

Multiple - see below for details
5 reviews
Sale Price

from $1149.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Holley EFI LS Hi-Ram Intake Manifold line is a cast aluminum EFI intake manifold for GM LS engines. It suits high-performance and racing builds where induction system height isn't a limit. It offers a lower-cost alternative to fabricated sheet-metal intakes.

Key Features:

  • Cast aluminum construction for durability.
  • Modular Hi-Ram design with a runner length and tapered cross-section that work across a wide range of engine configurations.
  • Built for big-cube and high-RPM use on naturally aspirated or forced induction engines.
  • EFI fuel rails are machined for -8AN O-ring fittings. Their passages are large enough for high fuel flow and help dampen pressure pulsations in the fuel system.
  • Multiple configurations are available. Select the child item that matches your cylinder heads, throttle body and setup.

Holley EFI LS Hi-Ram manifolds are a good base for a high-RPM LS induction system. They suit builders chasing maximum power from big-displacement engines, and they come from a long-established name in EFI and induction.

Select yours to see vehicle-specific options.

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3 items

Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6 Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6 Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6 Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6 Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6 Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6 Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6 Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6 Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6 Picture of Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6
Holley EFI 300-122 LS Hi-Ram EFI Intake Manifold for LS1/LS2/LS6
Engine
Description
Specifications
Basic Operating RPM Range3500-8000
BrandHolley EFI
CategoryEngine
CNC PortedNo
ColorNatural
ConstructionCast
Cylinder Head Port ShapeCathedral
EGR PortNo
Emission Code4
EngineGM LS1/LS2/LS6
Flange StyleEFI
Fuel Injectors IncludedNo
Fuel Rail(s) IncludedYes
Fuel System TypeEFI
Gasket Or Seal IncludedYes
Grade TypePerformance
Intake Port Gasket(s) IncludedNo
Manifold TypeHi-Ram
MaterialAluminum
Nitrous Bung(s) IncludedNo
Part TypeEngine Intake Manifold
Plenum FinishNatural
Product TypeIntake Manifold
Recommended UseForced Induction
Removable RunnersNo
Removable Top/LidYes
Single Or Dual Plane TypeSingle Plane
Sub CategoryCylinder Block Components
Throttle Body Bore Diameter92 MM
Throttle Body Gasket IncludedYes
Throttle Body IncludedNo
Vacuum PortsYes
WarningCalifornia Proposition 65
WarrantyManufacturer's Limited 90 Day Warranty
$1,149.95
PART NUMBER: 300-122
In Stock (10+)
Usually delivered within 2 days
Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6 Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6 Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6 Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6 Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6 Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6 Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6 Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6 Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6 Picture of Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6
Holley EFI 300-122BK LS Hi-Ram EFI Intake Manifold Black LS1/LS2/LS6
Engine
Description
Specifications
Basic Operating RPM Range3500-8000
BrandHolley EFI
CategoryEngine
CNC PortedNo
ColorBlack
ConstructionCast
Cylinder Head Port ShapeCathedral
EGR PortNo
Emission Code4
EngineGM LS1/LS2/LS6
Flange StyleEFI
Fuel Injectors IncludedNo
Fuel Rail(s) IncludedYes
Fuel System TypeEFI
Gasket Or Seal IncludedYes
Grade TypePerformance
Intake Port Gasket(s) IncludedNo
Manifold TypeHi-Ram
MaterialAluminum
Nitrous Bung(s) IncludedNo
Part TypeEngine Intake Manifold
Plenum FinishBlack
Product TypeIntake Manifold
Recommended UseForced Induction
Removable RunnersNo
Removable Top/LidYes
Single Or Dual Plane TypeSingle Plane
Sub CategoryCylinder Block Components
Throttle Body Bore Diameter92 MM
Throttle Body Gasket IncludedYes
Throttle Body IncludedNo
Vacuum PortsYes
WarningCalifornia Proposition 65
WarrantyManufacturer's Limited 90 Day Warranty
$1,199.95
PART NUMBER: 300-122BK
In Stock (10+)
Usually delivered within 2 days
Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6 Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6 Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6 Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6 Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6 Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6 Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6 Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6 Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6 Picture of Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6
Holley EFI 300-123BK LS Hi-Ram Intake Manifold - Black LS1/LS2/LS6
Engine
Description
Specifications
Basic Operating RPM Range3500-8000
BrandHolley EFI
CategoryEngine
CNC PortedNo
ColorBlack
ConstructionCast
Cylinder Head Port ShapeCathedral
EGR PortNo
Emission Code4
EngineGM LS1/LS2/LS6
Flange StyleEFI
Fuel Injectors IncludedNo
Fuel Rail(s) IncludedYes
Fuel System TypeEFI
Gasket Or Seal IncludedYes
Grade TypePerformance
Intake Port Gasket(s) IncludedNo
Manifold TypeHi-Ram
MaterialAluminum
Nitrous Bung(s) IncludedNo
Part TypeEngine Intake Manifold
Plenum FinishBlack
Product TypeIntake Manifold
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
$1,249.95
PART NUMBER: 300-123BK
In Stock (10+)
Usually delivered within 2 days

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