Description
High-Performance Carbureted Lower Intake Manifold Base. The Holley GM LS3/L92 Hi-Ram Carbureted Lower Intake Manifold is engineered to optimize airflow for carbureted GM LS3 and L92 rectangle-port LS engines. It features a single-plane design with tapered runners to support high-RPM engine performance in racing applications.
Construction and Appearance. Made from cast aluminum with a natural finish, this intake manifold base offers durability and lightweight characteristics. It includes a removable top for access and maintenance, and utilizes a standard molded LS3 O-ring flange gasket for a reliable seal.
Installation Notes. This product is a lower manifold base designed to mount to LS3/L92 cylinder heads. Installation requirements may vary depending on the complete intake setup and chosen top, and minimal modifications could be necessary. It is intended for professional or enthusiast installation.
Warranty. Backed by a manufacturer’s limited 90-day warranty covering materials and workmanship defects.
Application. Designed for GM LS3/L92 rectangle-port LS engines. Compatible with various applications including, but not limited to, 2008-2013 6.2L Corvette C6 models. Intended for racing use only and not legal for installation on emissions-controlled vehicles.
Holley 300-213
CA Residents: WARNING: Cancer and Reproductive Harm
- Carbureted Base Only
- Plenum Top Mounting Fabrication Flange Available
- Plenum Top Gasket Type 3/32” Round O-Ring Cord
- Port Size 2.49” Height X 1.21” Wide
- Mounting Flange Gasket Type Standard LS3 Molded O-Ring
- Runner Length 6.50”
- As-Cast Runner Cross-Sectional Area Tapered 4.25” To 2.77 In²
- Basic Operating RPM Range 3500-8000 RPM
- Construction Cast Aluminum
- Cylinder Head Port Shape Rectangle
- Deck Height 9.24 In
- EGR Port No
- Emission Code 4 (Racing Use Only – Not Legal for Installation on Emissions Controlled Vehicles)
- Engine GM LS3/L92
- Fuel System Type Carbureted
- Grade Type Performance
- Plenum Finish Natural
- Removable Top/Lid Yes
- Single Or Dual Plane Type Single Plane
- Vacuum Ports Yes
- Manufacturer’s Limited 90 Day Warranty
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