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Holley EFI LS Fabricated Hi-Ram Intake Manifold Tops 300-284 Manifolds, Fabricated, Hi-Ram, Throttle Body, Top Only, 95mm Bore, Aluminum, Black, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Kit

Holley EFI LS Fabricated Hi-Ram Intake Manifold Tops 300-284 Manifolds, Fabricated, Hi-Ram, Throttle Body, Top Only, 95mm Bore, Aluminum, Black, Chevy, LS, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Kit

A$1,323.76
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Holley EFI LS Fabricated Hi-Ram intake manifold tops are solutions to having limited room in the front of the engine bay. These 4mm thick aluminum plenum tops allow you to mount the throttle body on the side. This setup will allow for easier fabrication for boosted applications or for just a different look on your Hi-Ram manifold. Designed to mount on Holley's existing Hi-Ram manifold bases, they are available in silver or black finishes in throttle body patterns of either 95mm or 105 mm sizes.

Part Type

Intake Manifolds, Fuel Injected

Data: v4.2 - Upd: 2026-10-13 18:47:12

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
300-284
Product Attributes - Part Type
Intake Manifolds, Fuel Injected
Product Attributes - Product Line
Holley EFI LS Fabricated Hi-Ram Intake Manifold Tops
Product Attributes - UPC
090127067864
Product Attributes - Fuel Injection Style
Throttle body
Product Attributes - Intake Section Included
Top section only
Product Attributes - Throttle Body Bore Size
95mm
Product Attributes - Injectors Included
No
Product Attributes - Multi-Port Fuel Rails Included
No
Product Attributes - EGR
No
Product Attributes - Aftermarket Fuel Rail Required
No
Product Attributes - Throttle Body Included
No
Product Attributes - Supplemental Bosses Cast-In
No
Product Attributes - Supplemental Bosses Machined
No
Product Attributes - Runners Included
No
Product Attributes - Runners Removable
No
Product Attributes - Plenum Material
Aluminum
Product Attributes - Plenum Finish
Natural
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Mounts to existing Hi-Ram manifold bases.

Reference Information

Brand Name/s Holley
StreetFX SKU hly300-284
SFX Item ID 4783866
Supplier Item Code 4783866
Manufacturer SKU 300-284
Manufacturer UPC 90127067864
Alternative References HOL300-284, 95mm, 4.8L, 5.3L, 5.7L, 6.0L

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2014
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2017
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2019
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
  • MakeCHEVROLET
    Beginning Year2006
    Ending Year2015
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size7.0L/427
  • MakeCHEVROLET
    Beginning Year2008
    Ending Year2017
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.2L/376

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