HOLLEY LS HI-FLOW FUEL RAIL KIT - INCLUDES HOSE & FITTINGS - FITS LS1, LS2, LS3, LS6 & L99 FACTORY INTAKES
These Holley LS Hi-Flow Holley EFI Fuel Rails are the same as 534-209, but also includes (6') braided hose, (4) 90º and (2) straight -6 hose ends.
Note if this product is to be used with aftermarket (tall) EV1 performance injectors:
- LS2, LS3, and L99 applications will require taller brackets and adapter O-rings to be used with EV1 injectors. Holley part number 534-212 will have these required parts.
- LS1 and LS6 application will work with EV1 injectors without any additional parts. Holley part number 534-211 allows easy connection to factory fuel lines.
Features:
- Bright dip, black anodized finish with laser etched EFI logo for long lasting good looks
- 5/8” diameter fuel passage provides the flow capacity for high horsepower applications
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- Fuel rails are machined to accept -8 (3/4-16) O-ring fittings
- Includes (4) -6 to 3/4-16 O-ring adapters
- Same as 534-209, but also includes (6') braided hose, (4) 90º and (2) straight -6 hose ends
Brand |
Holley EFI |
Emission Code |
5 |
Product Type |
Fuel Rail Kit |
Part Number |
534-210 |

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.