Description
Dual Plane Carbureted Intake. The Holley GM LS3/L92 Dual Plane Carbureted Intake Manifold is designed to enable quick and easy installation of a carburetor on GM LS engines. It enhances low-end torque while allowing power to extend up to 6,500 RPM, making it an ideal solution for street and race applications where carburetion is preferred over fuel injection.
Construction and Appearance. Constructed from cast aluminum, this intake manifold offers a lightweight yet durable design with consistent wall thicknesses that improve casting quality. It features a natural finish and O-ring cylinder head mounting flange gaskets that provide an OEM-style seal for reliability and ease of installation.
Installation. Installation is straightforward with no drilling required, as the manifold utilizes the factory LS3/L92 rectangular port cylinder head pattern. Its minimum carb flange height reduces the need for hood modifications in most vehicles.
Warranty. This intake manifold is backed by a manufacturer?s limited 90-day warranty for peace of mind.
Application. Specifically fits the 07-08 6.2L Sierra 1500 Denali engines without exclusions or special notes indicated for this exact vehicle and time period.
Holley 300-129
CA Residents: WARNING: Cancer and Reproductive Harm
- All Gm Ls Gen Iii Or Iv Engines Equipped With Ls3/Ls92 Style Rectangular Port Cylinder Heads
- Legal For Sale Or Use On Racing Use Only Vehicles
- Dual Plane Design Optimized For Low End Torque And Power Up To 6,500 Rpm
- O-Ring Cylinder Head Mounting Flange Gaskets Provide Oem Style Seal
- Optimized Runner Layout And Constant Cross Sectional Area For Broad Torque Curve
- Port Size: 2.454 Inch Height By 1.09 Inch Wide
- Includes Viton? O-Rings
- Weight: 14.56 Pounds
- Height Front: 5.07 Inch From Front Lifter Valley Cover To Carb Mounting Flange
- 4150 Square Bore Carb Mounting Flange
- Minimum Carb Flange Height For Vehicles With Minimal Or No Hood Modifications
- Height Rear: 6.14 Inch From Rear Lifter Valley Cover To Carb Mounting Flange
- Suitable For Carbureted Or Throttle Body Efi Street Applications
- Cast Aluminum Construction With Consistent Wall Thicknesses And Improved Casting Quality
- Throttle Body Bore Diameter: 3.6 Inch
- Vacuum Ports Included
- Manufacturer?s Limited 90 Day Warranty
- Fits 07-08 6.2L Sierra 1500 Denali
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