Street. Track. Everything between.
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Holley EFI LS Single Plane Split-Design Race Intake Manifolds 300-294 Manifolds, Split Design EFI, Plane, Aluminum, Natural, 4500 Dominator, Chevrolet, LS1, LS2, LS6, Kit

Holley EFI LS Single Plane Split-Design Race Intake Manifolds 300-294 Manifolds, Split Design EFI, Plane, Aluminum, Natural, 4500 Dominator, Chevrolet, LS1, LS2, LS6, Kit

A$1,575.37
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
View cart 0
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Developed with performance in mind, Holley EFI LS single plane split-design race intake manifolds feature a race bred, 2-piece split design that was previously found only on the most expensive race intakes. These manifolds will fit GM LS Gen III engines with cathedral port heads for high performance/racing engine applications with 5.3 to 6.2 liter displacement and maximum engine speeds of 6,000 to 7,000 rpm, depending on the engine combination. The single-plane design provides optimal performance across the rpm spectrum, while the split feature, which allows disassembly of the intake for direct access to internal plenum and port surfaces, makes custom porting and matching a snap. Shoulder bolt locators and an O-ring seal makes reassembly simple and precise.

Part Type

Intake Manifolds, Fuel Injected

Data: v4.2 - Upd: 2026-10-17 03:13:07

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
300-294
Product Attributes - Part Type
Intake Manifolds, Fuel Injected
Product Attributes - Product Line
Holley EFI LS Single Plane Split-Design Race Intake Manifolds
Product Attributes - UPC
090127082201
Product Attributes - Cylinder Head Configuration
Cathedral Port LS1/LS2/LS6
Product Attributes - Fuel Injection Style
Multi-port
Product Attributes - Basic Operating RPM Range
2,500-7,000
Product Attributes - Intake Section Included
Complete
Product Attributes - Engine Block Deck Height
Standard deck
Product Attributes - Injectors Included
No
Product Attributes - Multi-Port Fuel Rails Included
Yes
Product Attributes - EGR
No
Product Attributes - Aftermarket Fuel Rail Required
Yes
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
Yes
Product Attributes - Base Material
Aluminum
Product Attributes - Base Color
Natural
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
For use with EFI 4500 dominator. Includes fuel rails.

Reference Information

Brand Name/s Holley
StreetFX SKU hly300-294
SFX Item ID 4783574
Supplier Item Code 4783574
Manufacturer SKU 300-294
Manufacturer UPC 90127082201
Alternative References HOL300-294, LS1, LS2, LS6

Compatibility

Application Data
  • Application NotesFor use with EFI 4500 dominator. Includes fuel rails.
    Beginning Year1997
    Ending Year2005
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size5.7L/350
    Engine TypeV8
    MakeCHEVROLET
  • Application NotesFor use with EFI 4500 dominator. Includes fuel rails.
    Beginning Year1999
    Ending Year2014
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size5.3L/325
    Engine TypeV8
    MakeCHEVROLET
  • Application NotesFor use with EFI 4500 dominator. Includes fuel rails.
    Beginning Year1999
    Ending Year2017
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size4.8L/294
    Engine TypeV8
    MakeCHEVROLET
  • Application NotesFor use with EFI 4500 dominator. Includes fuel rails.
    Beginning Year2005
    Ending Year2019
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size6.0L/364
    Engine TypeV8
    MakeCHEVROLET
  • Application NotesFor use with EFI 4500 dominator. Includes fuel rails.
    Beginning Year2006
    Ending Year2015
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size7.0L/427
    Engine TypeV8
    MakeCHEVROLET
  • Application NotesFor use with EFI 4500 dominator. Includes fuel rails.
    Beginning Year2008
    Ending Year2017
    Engine FamilyCHEVY SMALL BLOCK GEN III/IV LS V8 GAS
    Engine Size6.2L/376
    Engine TypeV8
    MakeCHEVROLET

Loading compatibility information...