Installation Time
(approx) 45 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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Features, Description, Reviews, Q&A, Specs & Installation
Hi-Flow Fuel Rails Upgrade. The Holley EFI Hi-Flow Fuel Rails are designed to replace stock rails on naturally aspirated Gen III Hemi engines, including 5.7L, 6.1L, and 6.4L configurations. These rails increase fuel delivery by offering a larger 5/8" diameter fuel passage, supporting higher horsepower applications without compromising flow. Their direct fit allows seamless integration into existing EFI port fuel injection setups, improving overall engine performance.
Construction and Appearance. Crafted from machined billet aluminum, these fuel rails feature a durable black anodized finish that resists corrosion and enhances a performance-oriented look. The laser etched logo provides subtle branding while maintaining a clean aesthetic. Factory injector clip reliefs enable reuse of stock injector clips while preserving proper injector spray alignment.
Installation. Installation is straightforward with no drilling required, as these fuel rails are designed for a direct fit on the specified Gen III Hemi engines. Included mounting brackets and hardware simplify the process, making it accessible for both experienced enthusiasts and professional mechanics.
Application. Specifically designed to fit 2003 to 2026 Ram 3500 trucks equipped with the 5.7L engine and 2011 to 2026 Ram 3500 trucks equipped with the 6.4L engine, ensuring compatibility without exclusions.
Holley EFI 534-284
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 45 Minutes
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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