-5%

Holley 300-126 Holley Mid-Rise Intake for GM LS1/LS2/LS6 Engines

-5%

#425300126

Holley 300-126 Holley Mid-Rise Intake for GM LS1/LS2/LS6 Engines

Specifically designed for the GM LS1/LS2/LS6 engines
Engineered to provide great performance to 6500 rpm
Ideal for street/strip performance applications

$1,199.95

/each

Factory Shipped

$1,267.95

Save $68.00

Quantity

Need Help? Call to Order

Add to a list

Select an engine to verify Fitment

Select Engine

Product Summary

EFI Fuel System Type, Multi-port Injection Style

Specifically designed for the GM LS1/LS2/LS6 engines
Engineered to provide great performance to 6500 rpm
Ideal for street/strip performance applications
The unique modular design allows the combination of a traditional dual-plane layout with an EFI manifold plenum
Will produce great mid-range torque without compromising top end power

See more details

Key Specs

MFG. Part #	300-126
Injection Style	Multi-port
Intake Manifold Type	Dual Plane
RPM Range	Idle-8,000
Material Type	Aluminum

See more specs

Need To Know

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

Holley 300-126 Details

Holley Modular Mid-Rise Intake for LS Engines

Transform your LS engine's performance with the Holley Modular Mid-Rise Intake, designed for LS1, LS2, and LS6 cathedral port engines. This innovative system integrates the popular Holley LS1/LS2/LS6 Mid-Rise 2x4 intake manifold with a purpose-built plenum base adapter and a 92MM EFI plenum top, converting it into a high-performance Mid-Rise EFI intake manifold. With a maximum overall height of only 10.44 inches, it is ideal for street and street/strip applications where hood clearance is limited, providing a powerful solution for supercharged or turbocharged setups.

Key Features:

Versatile Performance: Designed to deliver excellent performance across a wide powerband from 1,500 to 6,500 RPM, making it suitable for a variety of street and performance street/strip applications.
Modular Design: The unique modular construction allows for the combination of a traditional dual-plane layout with an EFI manifold plenum. This design provides great mid-range torque without compromising top-end power.
Customizable Options: As part of the Holley modular intake line, the intake, adapter, 92MM top, and fuel rails are available both as a complete kit and individually for custom builds. The plenum adapter (PN 300-231) is compatible with popular Holley Hi-Ram plenum tops, offering a foundation for bespoke induction systems.
Optimized for Boost: Perfect for blow-thru or turbocharged applications, the intake's design ensures robust performance and reliability under forced induction.

Specifications:

Max Overall Height: 10.44 inches
Powerband: 1,500-6,500 RPM
Material: Cast aluminum construction for durability and lightweight performance
Fitment: Compatible with all GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads. Note that recalibration of the ECU may be required when using this intake manifold design with an OE ECU.
EFI Conversion: The 92MM EFI plenum top converts the intake into a high-performance Mid-Rise EFI intake manifold.

Additional Information:

Performance and Aesthetics: Provides a race-inspired look while delivering exceptional street/strip performance.
Hood Clearance: Due to its height, some vehicle applications may require an aftermarket hood for proper fitment.

Upgrade your LS engine with the Holley Modular Mid-Rise Intake and experience a blend of traditional design and modern EFI performance. Whether for street driving, racing, or a custom build, this intake manifold offers the flexibility and power you need.

Specs:

Basic Operating RPM Range: 2500-7000 RPM

Color: Silver

Construction: Cast

EGR Port: No

Emission Code: 4

Engine: GM LS1/LS2/LS6

Finish: Silver

Flange Style: EFI

Front Height: 10.44 inch

Front Maximum Height: 10.44 IN

Fuel System Type: EFI

Intake Port Gasket(s) Included: No

Manifold Type: Mid Rise

Material: Aluminum

Nitrous Bung(s) Included: No

Plenum Finish: Natural

Product Type: Intake Manifold

Rear Height: 9.99 inch

Rear Maximum Height: 9.99 IN

Recommended Use: Forced Induction

Removable Runners: No

RPM Power Band: 2500-7000 RPM

Single Or Dual Plane Type: Single Plane

Throttle Body Bore Diameter: 95 MM

Throttle Body Included: No

Warranty: Limited 90 Day

Charts

Installation Instructions (PDF)

Guides & Documents

Intake Manifolds Installation Instructions (425300126)

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CARB warning

Holley 300-126 Specifications

KEY SPECS
MFG. Part #	300-126
Brand	Holley
Injection Style	Multi-port
Intake Manifold Type	Dual Plane
RPM Range	Idle-8,000
Material Type	Aluminum

GENERAL
Fuel System Type	EFI
Finish	Natural
EGR	No
Cylinder Head Configuration	Cathedral Port
Intake Section Included	Complete
Fuel Rails Included	Yes
Overall Height	10.44"
Emission Code	4
Sold in Quantity	Each
GTIN Code	090127682517
Intake Finish	Natural

Ratings & Reviews

Be the first to write a review.

Questions & Answers

Be the first to ask a question.

Fitment

2002-2011 Cadillac Escalade

GM LQ9

2003-2006 Cadillac Escalade ESV

GM LQ9

2002-2006 Cadillac Escalade EXT

GM LQ9

2000-2002 Chevy C1500

GM LQ4

2007 Chevy Silverado 1500 Classic

GM LQ4

2001-2003 Chevy Silverado 1500 HD

GM LQ4

2005-2006 Chevy Silverado 1500 HD

GM LQ4

2007 Chevy Silverado 1500 HD

GM LQ9

2007 Chevy Silverado 1500 HD Classic

GM LQ4

2000-2004 Chevy Silverado 2500

GM LQ4

2005 Chevy Silverado 2500

GM LQ9

2001-2011 Chevy Silverado 2500 HD

GM LQ4

2007 Chevy Silverado 2500 HD Classic

GM LQ4

2001-2006 Chevy Silverado 3500

GM LQ4

2007 Chevy Silverado 3500 Classic

GM LQ4

2007-2011 Chevy Silverado 3500 HD

GM LQ4

2000-2006 Chevy Suburban 2500

GM LQ4

2001-2014 GMC Savana 1500

GM LQ4

2001-2013 GMC Savana 2500

GM LQ4

2002-2013 GMC Savana 3500

GM LQ4

2001-2003 GMC Sierra 1500 HD

GM LQ4

2005-2006 GMC Sierra 1500 HD

GM LQ4

2007 GMC Sierra 1500 HD Classic

GM LQ4

1999-2004 GMC Sierra 2500

GM LQ4

2001-2011 GMC Sierra 2500 HD

GM LQ4

2007 GMC Sierra 2500 HD Classic

GM LQ4

2001-2006 GMC Sierra 3500

GM LQ4

2007 GMC Sierra 3500 Classic

GM LQ4

2001 GMC Sierra C3

GM LQ4

2001-2011 GMC Yukon XL 1500

GM LQ4

2000-2011 GMC Yukon XL 2500

GM LQ4

2003-2007 Hummer H2

GM LQ4