These Hi-Flow billet fuel rails are a direct fit for naturally aspirated Gen III Hemi engines, including the 5.7L, 6.1L, and 6.4L from 2003-2021, offering a 5/8" fuel passage for more flow capacity than the stock rails.
Specifications:
- Engine: Gen III Hemi
- Color: Black
- Material: Aluminum
- Fittings Included: No
- Injectors Included: No
- Grade Type: Performance
- Product Type: Fuel Rail
- Part Number: 534-284
Machined billet extrusions with laser-etched Holley EFI logo. Factory injector clip reliefs are retained so factory injectors and retaining clips can be reused, correctly locating the injector spray pattern. Black anodized rails feature -8 ORB ports on each end and a 1/8" NPT gauge port; gauge ports can be used as a fuel feed connection with NOS P/N 17015NOS, or fed from the factory line using Holley P/N 534-211. Includes mounting brackets and hardware.
FAQ
What Hemi engines does the 534-284 fit?
Naturally aspirated Gen III Hemi engines: 5.7L, 6.1L, and 6.4L, model years 2003-2021.
Can I reuse my factory injectors?
Yes, the rails are designed with factory injector clip reliefs so factory injectors and retaining clips can be reused.
What's the gauge port for?
The 1/8" NPT gauge port can be used for a fuel gauge, or as a fuel feed connection with NOS P/N 17015NOS.
What's included in the box?
Fuel rails, mounting brackets, and required hardware.
