Holley GM LS3/L92 Modular EFI Hi-Ram Intake Manifold with 105mm LS Throttle Body Mount (07-08 6.2L Sierra 1500 Denali)

Description

High-Performance EFI Intake. The Holley GM LS3/L92 Modular EFI Hi-Ram Intake Manifold with 105mm LS Throttle Body Mount is engineered to enhance airflow and engine performance for large displacement LS engines. It supports naturally aspirated and forced induction configurations, optimizing power delivery up to 7000-8000+ RPM, making it ideal for muscle cars, off-road, marine, and racing applications.

Construction and Appearance. Crafted from cast aluminum for durability and strength, this intake features a natural finish and tapered runner design to improve airflow efficiency. The modular base allows adaptability and customization for various EFI or carbureted tops while maintaining aggressive race-bred styling.

Installation. Installation requires moderate mechanical skill with no drilling necessary, as it bolts directly to LS3/L92 style cylinder heads. The design ensures a secure fit with included gaskets and provisions for vacuum and fuel system connections.

Warranty. Covered by a manufacturer’s limited 90-day warranty providing assurance against defects in materials and workmanship.

Application. Designed to fit the 07-08 6.2L Sierra 1500 Denali engine, ensuring compatibility with select GM LS engines of similar size and configuration.

Holley 300-117

CA Residents: WARNING: Cancer and Reproductive Harm

• Cast Aluminum Construction
• Runner Length and Tapered Cross-Section Designed to Perform Well for a Wide Range of Engine Configurations
• Base Designed to be Modular to Accept Various Carbureted and EFI Tops
• Suitable for Naturally Aspirated or Forced Induction Engines from 6.0 to 7.0+ Liters
• Max Power Potential at 7000-8000+ RPM
• EFI Fuel Rails Machined for -8AN O-Ring Fittings
• Fuel Rails Feature Large Passages to Accommodate High Flow and Dampens Pressure Pulsations
• Intake Designed for 1 x 105mm GM LS Throttle Body with Longitudinal Mount Plenum Top
• Plenum Top Gasket Type is 3/32” Round O-Ring Cord
• Port Size Measures 2.49” Height by 1.21” Wide
• Mounting Flange Gasket Type is Standard LS3 Molded O-Ring
• Throttle Body Flange Located 8.42” in Height from Engine Block Lifter Valley Cover Flange
• Throttle Body Longitudinal Location is 3.84” Forward from Engine Block Front Flange
• Throttle Body Angle is 25 Degrees Down from Vertical
• Manifold Includes Provisions for (1) 3/8 NPT and (2) 1/8 NPT Fittings
• Runner Length is 6.50” with As-Cast Runner Cross-Section Tapering from 4.25 In² to 2.77 In²
• Base Plenum Top Mounting Flange Height is 8.42” to Lifter Valley Cover Flange
• Total Height with 92/105mm EFI Plenum Top is 12.32” to Lifter Valley Cover Flange
• Fits 07-08 6.2L Sierra 1500 Denali