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

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

Installation Instructions (PDF)

Installation Instructions (PDF)