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Terminator Stealth 4150 8-Injector Upgrade

By: Blue Ambien 08/20/2025

Finally.....last of the bulk parts ordered to upgrade the current carbureted fuel delivery system to the Terminator Stealth set up.


This project began about 2 years ago when I ordered the 4150 Throttle Bodies and Terminator ECUs. Life of course happened and I had to mothball everything until this Summer. Reviewing the build and acquiring updates, I found out there was an ECU available to handle 4l80e duties which would allow me to eliminate the US Shift Transmission Controller. Now I have the Terminator X Max ECU on order and already received the applicable Harness. I also splurged on the BT upgrade so I can use my phone or iPad to make adjustments to the fuel injection system. I topped all this off with a 12.3" Holley plug and play dash. I am also going to provide spark utilizing the 565-200BK Dual-Synch Distributor.


This leaves me with a Terminator X ECU and US Shift Quick 4 Transmission Controller up for grabs! Neither have been installed and I still have all the installation material and instructions (drop me a comment if interested).


The current SITREP is as follows:


  1. The top end of my 540 Big Block has been removed to rebuild and re-polish the Weiand 8-71 Blower
  2. Intake Manifold and Brodix Heads on their way to Burbank Speed & Machine for rebuild and port matching
  3. Fuel Cell dropped and ready for the Holley 12-140 Dual Motor In-Tank Fuel Pump. I am excited for this upgrade because the in-line Fuel Pump was louder than the truck! Running -10AN feed line and -8 AN return line to keep her fully fed with pump gas
  4. Prepping to install the O2 Bungle about 10-12" down flow from the point of Tube intersections
  5. Dash is coming out this weekend to fit the custom Console designed for the Holley 12.3" screen. I purchased the Console from Classic Dash along with a set of brackets


Big shout out to Ryan Hines at Holley for the recommendations and technical support to get this beast running again.

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