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522-421 - Holley EFI Fuel Injector - Individual Image
Holley EFI

Holley EFI Fuel Injector - Individual

Part # 522-421
1 Review

Bosch/EV1 - 42 lb/hr - High Impedance

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Body Style

Flow Matched

Impedance

Rated Injector Flow

Qty

Holley EFI Fuel Injector - Individual

Free Shipping on orders over $149*

In Stock

$105.95
Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. They are available from 19 to 160 lb/hr flow rates to accommodate a variety of vehicles. Holley EFI Fuel Injectors provide precision fuel delivery you can depend on.

Features:

  • Bosch/EV1 style performance injector - Individual
  • High impedance for use with saturated drivers
  • Rated injector flow: 42 lb/hr @ 43 PSI
  • Tri-cone spray pattern
  • Compatible with Terminator X

About Holley EFI

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Body Diameter0.97
Body Length2.85"
Body StyleEV1
Brand Holley EFI
CategoryAir and Fuel Delivery
ColorBlack
Connector SeriesEV1 - Jetronic - (Bosch Style)
Connector ShapeEV1 - Jetronic - (Bosch Style)
Emission Code3
Flow MatchedNo
Flow Rate42 4U
Fuel Injection TypePort
Fuel TypeE-85, Gasoline
Gasket Or Seal IncludedYes
Grade TypePerformance
ImpedanceHigh
Mounting Hardware IncludedNo
O-Ring Quantity2 per injector
O-Ring to O-Ring2.415"
Part TypeFuel Injector
Product TypeFuel Injector
Qty1
Rated Injector Flow42 lb/hr
Retainer Clips IncludedNo
Sub CategoryFuel Injection System and Related Components
Terminal GenderMale
UPC090127666555
Part Number522-421
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.


The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle


WARNING: It is against the law to install this part on an Emissions Controlled Vehicle


The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
Holley EFI Dealers
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Holley EFI Support Forums
Instructions - bosch_style_fuel_injector.pdf
Instructions - 199r10691.pdf
Designed for use in setups with a 38mm distance between the o-ring seats on the fuel rail and intake manifold (commonly referred to as an "LS3-Style" injector), this injector features a USCAR connector and 14mm o-rings on both ends. It is an ideal fit for Holley EFI Intake manifolds that include fuel rail brackets for shorter LS3/LS7 length injectors. However, when used in an intake manifold designed for factory LS3/LS7 injectors, the bottom o-ring needs to be replaced to ensure proper fitment.
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Holley EFI
Fuel Injector - Individual
Bosch/EV1 - 42 lb/hr - High Impedance
Part# 522-421
$105.95
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*Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.

Holley EFI Fuel Injector - Individual
Holley EFI Fuel Injector - Individual
$105.95