LS7 Hi-Ram Fuel Rail Adapter Kit for GM LS3/LS7 Injectors [Aluminum]

Name: LS7 Hi-Ram Fuel Rail Adapter Kit for GM LS3/LS7 Injectors [Aluminum]
Brand: HOLLEY
SKU: 510-300-230
Price: 259.95 USD
Availability: InStock

^$259⁹⁵

Ships on Sep 04, 2026

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Replacement Parts & Accessories

LS7 Hi-Ram Fuel Rail Adapter Kit

Holley Hi-Ram LS Intake Manifolds (LS7 Version)

Adapts Fuel Rail for Short LS3/LS7 Injectors

CNC-Machined Aluminum

Includes Adapters, Mounting Hardware & Injector O-Rings

The LS7 Hi-Ram Fuel Rail Adapter Kit lets you mount the fuel rail correctly when running short LS3/LS7 style injectors in place of the taller LS1 style injector on a Holley Hi-Ram LS intake.

Holley 300-230 Features:

Designed for the LS7 version of the Holley Hi-Ram intake manifold.
CNC-machined aluminum adapters for accurate injector-to-rail alignment.
Includes fuel rail adapters, mounting hardware, and injector o-rings.
Installation instructions included.

Part TypeFuel Rail

BrandHOLLEY

Package Height1.0

Package Width8.0

Package Length11.0

Weight0.5 PG

Part CategoryPerformance Parts

Part FitmentUniversal

Vendor Part Number300-230

Package Qty1

Package TypeEA

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Please click here to download the instructions PDF file

Some parts are not legal for use in California or other states with similar laws / regulations

LS7 Hi-Ram Fuel Rail Adapter Kit for GM LS3/LS7 Injectors [Aluminum]

Holley 300-230 Features:

⚠️ Warning

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Electrical Cords