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Holley

Holley EFI Fuel Rails 534-223 Rails, EFI, Aluminum, Black Finish, -8 AN O-ring Inlet, Brackets, Hardware, for 300-561, 300-562, 300-563 Intakes, Chevy, 6.5-7.4L, Kit

SKU: HLY534-223

Fuel Rails
Holley EFI Fuel Rails 534-223 Rails, EFI, Aluminum, Black Finish, -8 AN O-ring Inlet, Brackets, Hardware, for 300-561, 300-562, 300-563 Intakes, Chevy, 6.5-7.4L, Kit

Holley

Holley EFI Fuel Rails 534-223 Rails, EFI, Aluminum, Black Finish, -8 AN O-ring Inlet, Brackets, Hardware, for 300-561, 300-562, 300-563 Intakes, Chevy, 6.5-7.4L, Kit

SKU: HLY534-223

Fuel Rails
A$635.79
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

These machined aluminum EFI fuel rails are capable of handling 1,100+ hp engines. They feature a large inner diameter bore to decrease fuel pressure drop and help cancel out back pulses.

Part Type

Fuel Rail Kit - For 300-562/300-563/ 300-564

Data: v4.2 - Upd: 2026-10-17 03:12:57

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
534-223
Product Attributes - Part Type
Fuel Rails
Product Attributes - Product Line
Holley EFI Fuel Rails
Product Attributes - UPC
090127716526
Product Attributes - Fuel Rail Material
Aluminum
Product Attributes - Fuel Rail Color
Black
Product Attributes - Fuel Rail Inlet Size
-8 AN O-ring
Product Attributes - Fittings Included
No
Product Attributes - Hardware Included
Yes
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Fits Holley EFI intake manifolds.

Reference Information

Brand Name/s Holley
StreetFX SKU hly534-223
SFX Item ID 4783989
Supplier Item Code 4783989
Manufacturer SKU 534-223
Manufacturer UPC 90127716526
Alternative References HOL534-223, 6.5-7.4L

Compatibility

Application Data
  • Fuel Rail Style (application)Holley MPI
    MakeCHEVROLET
    Beginning Year1966
    Ending Year1969
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block Mark IV
    Application NotesFits Holley EFI intake manifolds.
  • Fuel Rail Style (application)Holley MPI
    MakeCHEVROLET
    Beginning Year1966
    Ending Year1970
    Engine TypeV8
    Engine Size6.5L/396
    Engine FamilyChevy big block Mark IV
    Application NotesFits Holley EFI intake manifolds.
  • Fuel Rail Style (application)Holley MPI
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1972
    Engine TypeV8
    Engine Size6.6L/402
    Engine FamilyChevy big block Mark IV
    Application NotesFits Holley EFI intake manifolds.
  • Fuel Rail Style (application)Holley MPI
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1990
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
    Application NotesFits Holley EFI intake manifolds.
  • Fuel Rail Style (application)Holley MPI
    MakeCHEVROLET
    Beginning Year1991
    Ending Year1995
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Gen V
    Application NotesFits Holley EFI intake manifolds.
  • Fuel Rail Style (application)Holley MPI
    MakeCHEVROLET
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Gen VI
    Application NotesFits Holley EFI intake manifolds.

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