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Replacement Fuel Rail Kit for Lo-Ram 300-620 and 300-621 Manifolds

Single Injector Design

PART# 534-260

$167.00   Suggested Retail
$149.95   Your Price
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Replacement fuel rail kits designed for the 300-620 and 300-621 Lo-Ram intake manifolds with single injector per cylinder design. Finished in black anodizing, the high volume rails include the mounting hardware and have 3/4"-16 o-ring ports (8AN). The fuel rail kits come with two sets of brackets. A set for long (usually standard length) fuel injectors and a set for short (such as Pico, or LS7) fuel injectors.


  • Replacement fuel rail kit for Low-Ram 300-620 and 300-621 single injector design
  • High volume fuel rails and mounting hardware included with ¾”-16 o-ring ports (8 AN)
  • Kit includes two sets of brackets to allow using long or short injectors
  • Bright dip, black anodized finish with laser etched EFI logo for long lasting good looks


BrandHolley EFI
Emission Code5
Fuel System TypeEFI
Manifold TypeLo-Ram
Product TypeFuel Rail
WarrantyLimited 90 Day
Part Number534-260

Service Parts



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.

Warranty Information

Limited 90 Day: See Details
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