My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Holley EFI 300-230 LS7 Hi-Ram Fuel Rail Adapter Kit - GM LS3/LS7 Injectors

Manufacturer

Part Number

300-230
Sale Price

$259.95

In Stock (10)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Holley EFI 300-230 LS7 Hi-Ram Fuel Rail Adapter Kit is purpose-built for use with the Holley Hi-Ram line of LS intake manifolds. This adapter kit solves a common compatibility challenge: it provides proper fuel rail mounting geometry when upgrading from the taller LS1-style injector to the shorter-bodied GM LS3/LS7-style injector, ensuring a secure, leak-free fit without modifications to the manifold.

Key Features:

  • Designed specifically for Holley Hi-Ram LS intake manifolds (LS7 version)
  • Accommodates short GM LS3/LS7-style injectors in place of taller LS1-style injectors
  • Compatible with Holley fuel rails 300-124 and 300-125
  • Kit includes fuel rail adapters, mounting hardware, injector O-rings, and installation instructions
  • Aluminum construction for strength and durability

This complete adapter kit includes everything needed for a straightforward installation, making it the ideal solution for builders using GM LS3 or LS7 injectors with the Holley Hi-Ram manifold system. Note: This kit is compatible with the LS7 version of the Holley Hi-Ram intake manifold only. Designed to work with Holley fuel rails 300-124 or 300-125.

Products specifications

Brand

Holley EFI

Category

Air and Fuel Delivery

Color

Black and Silver

Emission Code

5

Fittings Included

No

Fuel Injection Type

Port

Fuel Injectors Included

No

Fuel System Type

EFI

Gasket Or Seal Included

Yes

Grade Type

Performance

Material

Aluminium

Part Type

Fuel Injector Rail

Product Type

Manifold

Sub Category

Fuel Injection System and Related Components

Type of Component

Fuel Rail

Warning

California Proposition 65

Warranty

Manufacturer's Limited 90 Day Warranty

I was very pleased with all aspects of my purchase. I had not heard of boatplicity before. I'm glad I found them online. H

Have not had time to install, I will let you know how it turns out. Thanks

Extremely fast shipping,safe and proper packaging. happy to get the last one available in the U.S .hope it preforms as advertised.

so far so goog

thank you.

Hope I get my order thanks you

It was great

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy