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Holley EFI LS Single Plane Mid-Rise Intake Manifolds 300-137 Manifolds, EFI, Plane, Mid-Rise, Cathedral Port, Multi-port, 2,500-7,000 RPM Range, Aluminum, Satin Finish, Chevy, 4.8-6.0L, Each

Holley EFI LS Single Plane Mid-Rise Intake Manifolds 300-137 Manifolds, EFI, Plane, Mid-Rise, Cathedral Port, Multi-port, 2,500-7,000 RPM Range, Aluminum, Satin Finish, Chevy, 4.8-6.0L, Each

A$1,228.97
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.
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Description

IMPORTANT NOTICE: Designed to fit cathedral port cylinder heads. This manifold will not work with factory fuel rails. Requires Holley fuel rails, part number 534-219.

Holley EFI LS single plane mid-rise intake manifolds are great for your higher horsepower engine. Featuring cast aluminum construction, these manifolds are also great for centrifugal blower, turbocharged, or NOS mild power adder applications. The efficient casting design is lightweight--11.5 lbs.--with consistent wall thickness and strong mounting flanges. The optimized runner layout and constant cross sectional area offer a broad torque curve, with the best vehicle performance from 2,500 to 7,000 rpm. The mid-rise design offers minimum carb mounting flange height--without sacrificing power--and is another plus for vehicles with minimum hood modifications. Holley EFI LS single plane mid-rise intake manifolds include zinc-plated hex head cap mounting bolts and washers, pipe plugs to block manifold vacuum and MAP sensor ports, and Viton® O-ring cylinder head mounting flange gaskets for an OEM-style seal.

Part Type

Intake Manifold Single Plane EFI GM LS1/LS2/LS6

Data: v4.2 - Upd: 2026-10-13 18:47:16

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
300-137
Product Attributes - Part Type
Intake Manifolds, Fuel Injected
Product Attributes - Product Line
Holley EFI LS Single Plane Mid-Rise Intake Manifolds
Product Attributes - UPC
090127687758
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
No
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
No
Product Attributes - Base Material
Aluminum
Product Attributes - Base Color
Natural
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Designed to fit cathedral port cylinder heads. This manifold will not work with factory fuel rails. Requires Holley fuel rails, part number 534-219.

Reference Information

Brand Name/s Holley
StreetFX SKU hly300-137
SFX Item ID 4783523
Supplier Item Code 4783523
Manufacturer SKU 300-137
Manufacturer UPC 90127687758
Alternative References HOL300-137, 4.8-6.0L

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 Year2001
    Ending Year2005
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350

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