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Holley 550-440 Terminator Stealth EFI Kit, Shiny
Holley 550-440 Terminator Stealth EFI Kit, Shiny

Holley 550-440 Terminator Stealth EFI Kit, Shiny

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Holley 550-440 Terminator Stealth EFI Kit, Shiny
Holley 550-440 Terminator Stealth EFI Kit, Shiny
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We estimate this item will ship on or before March 30th.
Part # 425550440
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 10 business days for Holley to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


Sold in Quantity:
GTIN Code:
MFG. Part #:
950 CFM
Injector Size:
80Lb/Hr @ 43PSI
Intake Finish:


Have been hesitant on switching to EFI because you like the traditional look of a carburetor? There is no more need to worry! Holley has you covered with the new Terminator Stealth Throttle Body Fuel injection System. Now you can have all of the benefits of EFI and maintain the traditional looks of a carburetor. Holley’s Terminator Stealth EFI systems have the same great self-tuning features of the Terminator EFI in a new stealthy package!

  • Easy to install
  • No computer experience required
  • Handheld tuner included
  • Simple multiple choice set-up wizard
  • Self-tunes while you drive
  • Upgradable to complete laptop control without buying another ECU
  • Carburetor replacement EFI from the fuel systems experts
  • Carburetor looks with the drivability of EF
  • Trouble-free performance with today’s fuels - put an end to vapor lock and fuel varnish problems
  • Fits V8 engines from 250-600 horsepower
  • 4150 style 4BBL mounting flange - Bolts on in place of carburetor
  • Fully self-tuning ECU - No laptop required
  • Includes full color, 3.5” touch screen LCD for both basic and advanced tuning options
  • Timing control option for GM Small Cap HEI and Ford TFI distributors
  • Connections for Ford, GM TH350, 700R4 and other transmission linkages
    Optional free software upgrade for full laptop control
    Easy plug and play harnesses with minimal connections
    Virtually maintenance free - keeps your vehicle reliable and ready to drive

Installation Instructions

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

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