Description
High-Performance Intake Manifold Base. The Holley EFI Gen III HEMI Hi-Ram Intake Manifold Base in Black is engineered to improve airflow and fuel delivery for Gen III HEMI engines. It provides a solid foundation for custom induction systems, ideal for naturally aspirated, forced induction, or nitrous setups ranging from 5.7 to over 7.2 liters, maximizing power output at high RPM.
Construction and Appearance. Made from cast aluminum for durability and lightweight performance, this manifold base features a durable black finish designed to resist wear and complement high-performance builds. The EFI fuel rails are precisely machined to support superior fuel flow and pressure stability.
Installation. Installation is straightforward and requires no drilling. It is designed for compatibility with original equipment Gen III HEMI cylinder heads and EFI injectors. The modular design allows easy pairing with various EFI tops to suit custom applications and builds.
Warranty. This product includes a manufacturer’s limited 90-day warranty ensuring quality and performance.
Application. This intake manifold base fits 2009-up 5.7L, 2005-2010 6.1L, and 2011-up 6.4L HEMI engines. It is intended for use on vehicles without emissions control systems.
Holley EFI 300-653BK
CA Residents: WARNING: Cancer and Reproductive Harm
- Gen III HEMI EFI Manifold Base with Black Finish
- Compatible with 2009-Up 5.7L, 2005-2010 6.1L, and 2011-Up 6.4L Engines
- Legal for Sale and Use on Uncontrolled Non-Emissions Controlled Vehicles
- EFI Fuel Rails Machined for -8 AN O-Ring Fittings with Large Passages to Accommodate High Fuel Flow and Dampen Pressure Pulsations
- Designed for Naturally Aspirated, Forced Induction, or Nitrous Engines from 5.7 to over 7.2 Liters
- Max Power Output at 7500-8500 RPM
- Suitable for High-Performance Applications Where Induction System Height is Not Limited
- Modular Base Designed for Custom Induction Systems with a Wide Range of EFI Tops
- Large Intake Ports Measuring 1.70 Inches Height by 1.88 Inches Width
- Positive Crankcase Ventilation (PCV) Ports with Adapter Fittings
- Runner Length and Tapered Cross-Section Suited for a Wide Range of Engine Configurations
- Port for OE-Style Manifold Absolute Pressure (MAP) Sensor – One or Two Bar
- Cast Aluminum Construction with Natural Satin or Black Finish
- Compatible with Gen III HEMI Injectors and Bosch EV-1 Style Injectors
- Billet Oil Fill Cap with Low Profile Design
- Cast-In Pads for Adding Nitrous Nozzles
- Overall Height of 11.59 Inches
- O-Ring Seal to Cylinder Head with Large Retained O-Rings for OE-Style Sealing and Easy Replacement
- Includes Gaskets and Hardware for Installation
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