Description
High-Performance EFI Hi-Ram Intake. This Holley EFI Hi-Ram Intake manifold is engineered to enhance airflow for naturally aspirated and forced induction LS engines, supporting a wide RPM range from 3,500 to 8,000+. It maximizes throttle response and power by serving as a flexible induction system component.
Construction and Design. Made of lightweight cast aluminum with a natural finish, the manifold features an aggressive race-inspired style. The modular base design accommodates both carbureted and EFI setups. EFI fuel rails are precision-machined for -8AN O-ring fitting compatibility to ensure dependable fuel delivery.
Installation. The manifold installs using standard LS3 molded O-ring mounting flanges. It is suitable for enthusiasts and professionals seeking a performance upgrade compatible with high-flow LS3/L92 style heads without extensive modifications.
Warranty and Application. Backed by a limited 90-day manufacturer’s warranty, this intake manifold is legal for use on racing-only vehicles. It fits multiple GM LS engine applications featuring LS3/L92 style rectangle-port heads, including but not limited to 2008-2013 6.2L Corvette C6 engines, providing broad compatibility across performance builds.
Holley 300-115
CA Residents: WARNING: Cancer and Reproductive Harm
- EFI Hi-Ram Intake with Two 4150 Flanges for Sideways or Inline Mounting
- Legal For Sale Or Use On Racing Use Only Vehicles
- Cost Effective Alternative To Fabricated Sheet-Metal For High-Performance Applications
- Designed For Induction System Height Not Limited
- Compatible With High Flowing LS3/L92 Style Cylinder Heads
- Suitable For Naturally Aspirated And Forced Induction Engines
- Aggressive Race-Bred Styling For Various Applications
- EFI Fuel Rails Machined For -8AN O-Ring Fittings
- Runner Length And Tapered Cross-Section Designed For Wide Engine Configurations
- Cast Aluminum Construction
- Modular Base Designed To Accept Carbureted And EFI Tops
- Maximum Power At Seven Thousand To Eight Thousand Plus RPM
- Standard LS3 Molded O-Ring Mounting Flange Gasket
- Base Plenum Top Mounting Flange Height Eight Point Four Two Inches
- Overall Top Mount Height Eleven Point Zero Eight Inches
- Port Size Two Point Four Nine Inches Height By One Point Two One Inches Wide
- Plenum Top Gasket Three Thirty-Seconds Inch Round O-Ring Cord
- Runner Length Six Point Five Zero Inches Tapered Four Point Two Five To Two Point Seven Seven Square Inches
- Operating RPM Range Three Thousand Five Hundred To Eight Thousand RPM
- Carburetor Flange Type Square Four Thousand One Hundred Fifty
- Carburetor Quantity Two
- Fuel Rails Included Yes
- Single Plane Intake Manifold Style
- Vacuum Ports Included Yes
- Manufacturer’s Limited Ninety Day Warranty
- Fits Multiple GM LS Engine Applications Featuring LS3/L92 Style Rectangle-Port Heads






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