Sale

Air and Fuel› Intake Manifolds and Components

Holley

GM LS Hi-Ram Intake System EFI 105mm LS7

$1,518.95 $1,418.95 Save $100.00

SKU: H00E 300-125

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Holley 300-125 is a cast aluminum Hi-Ram Intake Manifold designed for high-performance GM LS7 port style engines (Gen III/Gen IV, 6.0-7.0+ liter). It features a 105mm throttle body port and includes Holley fuel rails. This manifold is intended for racing, performance, and street rodder applications where hood clearance is not an issue.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHolley
Part NumberH00E 300-125
Weight35.84 lb

Videos

Tech Review: Holley Hi-Ram Intake Manifolds

Tech Review: Holley Hi-Ram Intake Manifolds
LSXcalade Returns! New LS7 Hi Ram Intake Manifold Prep & Flow Testing The OG 2000cc Injectors

LSXcalade Returns! New LS7 Hi Ram Intake Manifold Prep & Flow Testing The OG 2000cc Injectors
7700-RPM JUNKYARD 5.3L LS INTAKE TEST. HI RAM VS LOW RAM-WHICH HOLLEY LS INTAKE MAKES THE MOST HP?

7700-RPM JUNKYARD 5.3L LS INTAKE TEST. HI RAM VS LOW RAM-WHICH HOLLEY LS INTAKE MAKES THE MOST HP?
Holley Performance Hi-Ram Intake and Fuel Rails | Project Last Chance C10

Holley Performance Hi-Ram Intake and Fuel Rails | Project Last Chance C10
Holley EFI Cast Intake Manifold Buyer’s Guide for GM LS and LT Engines

Holley EFI Cast Intake Manifold Buyer’s Guide for GM LS and LT Engines
Ls7 HOLLEY HI-RAM INTAKE DUEL THROTTLE BODIES SETUP DYNOED!!!!

Ls7 HOLLEY HI-RAM INTAKE DUEL THROTTLE BODIES SETUP DYNOED!!!!
Tech Review: Holley LSX Hi-Ram Intake Manifold

Tech Review: Holley LSX Hi-Ram Intake Manifold

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy