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Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1005 Systems, X, EFI, Eight Injectors, Throttle Body, Speed Density, Aluminum, Black, Tunable, Kit

SKU: HLY550-1005

Fuel Injection Systems

Holley Terminator X Stealth 4150 EFI Fuel Injection Systems 550-1005 Systems, X, EFI, Eight Injectors, Throttle Body, Speed Density, Aluminum, Black, Tunable, Kit

SKU: HLY550-1005

Fuel Injection Systems
A$5,269.64
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Holley Terminator X Stealth 4150 EFI systems feature 4 or 8, 100 lb. fuel injectors capable of supporting up to 650 hp naturally aspirated, and 600 or 1250 hp on forced induction applications. The Terminator X ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower! The throttle body has the standard 4150 carburetor flange so it will bolt down where your square bore carburetor was. Holley Terminator X Stealth 4150 systems also include transmission kick-down provisions for GM TH350, TH400, 200R4, 700R4, and Ford's C4 and C6 applications!

Part Type

Terminator X Stealth EFI Kit 8-Injectors

Data: v4.2 - Upd: 2026-10-13 18:46:53

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
550-1005
Product Attributes - Part Type
Fuel Injection Systems
Product Attributes - Product Line
Holley Terminator X Stealth 4150 EFI Fuel Injection Systems
Product Attributes - UPC
090127093016
Product Attributes - Fuel Injection Style
Throttle body
Product Attributes - Fuel Injection System Type
Single 4-Barrel Throttle Body (4150 Flange)
Product Attributes - Maximum Horsepower with Gas
1,250
Product Attributes - Timing Control Compatible
Yes
Product Attributes - ECM Included
Yes
Product Attributes - Self Tuning
Yes
Product Attributes - User Tunable
Yes
Product Attributes - Fuel System Included
None
Product Attributes - Ignition System Included
None
Product Attributes - Power Distribution Included
None
Product Attributes - User Interface Included
3.5 in. display
Product Attributes - EGR
No
Product Attributes - Transmission Controller Included
No
Product Attributes - Metering Style
Speed density
Product Attributes - Multi-Port Fuel Rails Included
No
Product Attributes - Throttle Body Included
Yes
Product Attributes - Throttle Body Mounting Flange
4-barrel square bore
Product Attributes - Venturi Quantity
8
Product Attributes - Venturi Diameter (mm)
44.45mm
Product Attributes - Airflow Rate (cfm)
950 cfm
Product Attributes - Throttle Body Material
Cast aluminum
Product Attributes - Throttle Body Color
Black
Product Attributes - Injectors Included
Yes
Product Attributes - Injector Size (lbs/hr)
100 lbs./hr.
Product Attributes - Calibration Module Included
Yes
Product Attributes - Wiring Harness Included
Yes
Product Attributes - Oxygen Sensor Included
Yes
Product Attributes - Fuel Pressure Regulator Included
No
Product Attributes - MAP Sensor Included
Yes
Product Attributes - IAT Sensor Included
Yes
Product Attributes - TPS Sensor Included
Yes
Product Attributes - IAC Motor Included
Yes
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
External fuel pressure regulator required, set to a base pressure of 58.5 psi.

Reference Information

Brand Name/s Holley
StreetFX SKU hly550-1005
SFX Item ID 4784206
Supplier Item Code 4784206
Manufacturer SKU 550-1005
Manufacturer UPC 90127093016
Alternative References HOL550-1005

Compatibility

Application Data
  • UniversalYes
    Fuel TypeGAS

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