This Holley EFI fuel injector features a precision lapped disc valve, high-quality brass windings, and high-temp O-rings for excellent linearity without the low pulse-width bounce common in other injectors. Sold individually, it's rated at 48 lb/hr with a tri-cone spray pattern.
Specifications:
- Product Type: Fuel Injector, Individual
- Body Style: EV1, Bosch style connector
- Rated Flow: 48 lb/hr
- Impedance: High (12.2 Ohm)
- Fuel Type: E-85, Gasoline
- Body Length: 2.85 in.
- O-Ring to O-Ring: 2.415 in.
- Part Number: 522-481
Designed for setups with a 38mm distance between o-ring seats on the fuel rail and intake manifold (commonly called LS3-style), featuring a USCAR connector and 14mm o-rings on both ends. It's an ideal fit for Holley EFI intake manifolds with fuel rail brackets for shorter LS3/LS7 length injectors; in manifolds designed for factory LS3/LS7 injectors, the bottom o-ring needs to be replaced for proper fitment.
FAQ
What is the rated flow of the 522-481 injector?
48 lb/hr at 43 PSI base fuel pressure, high impedance (12.2 Ohm).
What spray pattern does it use?
A tri-cone spray pattern for consistent atomization.
Does this fit standard LS3/LS7 manifolds?
It's designed for the shorter LS3-style 38mm o-ring seat spacing; in manifolds built for factory LS3/LS7 injectors, the bottom o-ring needs to be swapped for proper fitment.
