$244 Off

Holley 550-1074 Terminator X Stealth 4150 2X4, 1500 HP, Shiny

$244 Off

#4255501074

Holley 550-1074 Terminator X Stealth 4150 2X4, 1500 HP, Shiny

Bolt on 2x4 4150 Flange Carburetor Replacement
Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
Internal 1bar MAP sensor, built into the Terminator X ECU

Finish:

Shiny

$3,299.95

Factory Shipped

$3,543.95

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Product Summary

Universal Fit, Throttle Body Injection Style

Bolt on 2x4 4150 Flange Carburetor Replacement
Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
Internal 1bar MAP sensor, built into the Terminator X ECU
External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as Holley part # 12-886

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Key Specs

MFG. Part #	550-1074
Injection Style	Throttle Body
Injector Size	100 lb/hr @ 58.5 PSI
Max Horsepower Rating	1250
ECM Included	Yes

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Holley 550-1074 Details

TERMINATOR X STEALTH 4150 2X4

2x4 4150 Flange Carburetor Replacement - Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors

The Terminator X Stealth 4150 2x4 EFI systems from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 1500 HP naturally aspirated 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.

Bolt on 2x4 4150 Flange Carburetor Replacement
Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
Internal 1bar MAP sensor, built into the Terminator X ECU
External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as Holley part # 12-886
Integrated ignition timing control
High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service
Included weld-in O2 sensor bung for the exhaust ensures a leak free oxygen sensor installation
Plug and play with Holley EFI Accessories, such as the 12.3" and 6.86" Pro Dash; CAN EGT; and Digital Analog style EFI gauges
Available in 3 finishes: Shiny, Black, and Gold

Charts

Installation Instructions (PDF)

Technical Information (PDF)

Guides & Documents

Fuel Injection Systems Technical Information (4255501074)

Fuel Injection Systems Installation Instructions (4255501074)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Holley 550-1074 Specifications

KEY SPECS
MFG. Part #	550-1074
Brand	Holley
Injection Style	Throttle Body
Injector Size	100 lb/hr @ 58.5 PSI
Max Horsepower Rating	1250
ECM Included	Yes

GENERAL
Injectors Included	Yes
Intake Manifold Included	No
Metering Style	Speed density
Fuel Pump Included	No
Calibration Module Included	Yes
Fuel Pressure Regulator Included	No
Distributor Included	No
MAP Sensor Included	Yes
IAC Motor Included	Yes
IAT Sensor Included	Yes
Notes	Integrated ignition timing control
GTIN Code	090127130391
Sold in Quantity	Kit

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