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  • Atomic EFI
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  • Atomic EFI LS

Shop Holley Atomic EFI LS products


MSD LS Throttle Body TPS/IAC Kit

$78.96

TPS/IAC sensors to complete your throttle body assembly.

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Atomic LS Throttle Body

$458.95 - $505.95

MSD's LS Throttle Body answers the need for a high quality throttle body with a mechanical throttle mechanism that bolts to most factory and aftermarket intakes. The parabolic bore form design helps deliver excellent drivability characteristics during part throttle that typical billet straight bore throttles just can't deliver. We incorporated factory style bearings and seals on the throttle that can withstand years of use on the street or strip.


Features:

  • Parabolic design for precise control, smoother off-idle response and improved part-throttle driveability
  • Contoured inlet profile outflows the competition's big-bore throttle bodies
  • Less shaft twist for superior TPS signal stability
  • Billet body with stainless steel shaft
  • Robust throttle cam assembly, featuring a three-plate design
  • Dual ball-bearing design offers shaft stability and smoother operation
  • 4-bolt mounting for easy installation


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Atomic LS Late Truck Master Kit (Gen IV 2007-13)

$999.95

The GM LS-based engine has been embraced by hot rodders, muscle car fans and racers alike. The lightweight and compact engine produces plenty of power and fits easily in many engine compartments. However, trying to retrofit the factory EFI system into a street rod or muscle car creates a number of challenges from wiring to programming. Intimidating electronics and bulky wiring harnesses can quickly clutter the engine compartment and hurt the aesthetics of any hot rod. The massive factory ECU is not only a hassle to mount, but the sheer amount of wiring that goes along with it is simply overwhelming. MSD's Atomic LS EFI systems are designed to eliminate the intimidation and clutter when installing aftermarket EFI on an LS engine.

By integrating the ECU onto the fuel rails MSD has eliminated the bulky ECU and tangled mess of a wiring harness. The self-tuning technology of the Atomic system allows the average do-it-yourself hot rodder to easily wrap up an LS engine transplant. Initial setup is a breeze with the supplied handheld monitor and by simply answering a few car guy questions during the initial setup, your Atomic LS'd project will be ready to drive.

Features:

  • Integrated Fuel Rails and ECU
  • Wiredless technology reduces wire
  • Self-Tuning
  • No Laptop
  • GEN IV 2007-2013
  • Uses EV6 Injector Harness


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Atomic LS1/LS6 Installation Kit

$156.95

If you're working with an LS1/LS6 engine and intake combination, different fuel rail brackets and injector connectors will be required to install the PN 2950 Master Kit. This install kit will provide the proper brackets and injector connectors

Features:

  • For LS1/LS6 Atomic Installations
  • Must use with PN 2950 Master Kit
  • Includes brackets and injector connectors
  • Uses EV1 Injector Harness


Add to Cart

Atomic LS7 Master Kit

$999.95

The GM LS-based engine has been embraced by hot rodders, muscle car fans and racers alike. The lightweight and compact engine produces plenty of power and fits easily in many engine compartments. However, trying to retrofit the factory EFI system into a street rod or muscle car creates a number of challenges from wiring to programming. Intimidating electronics and bulky wiring harnesses can quickly clutter the engine compartment and hurt the aesthetics of any hot rod. The massive factory ECU is not only a hassle to mount, but the sheer amount of wiring that goes along with it is simply overwhelming. MSD's Atomic LS EFI systems are designed to eliminate the intimidation and clutter when installing aftermarket EFI on an LS engine.

By integrating the ECU onto the fuel rails MSD has eliminated the bulky ECU and tangled mess of a wiring harness. The self-tuning technology of the Atomic system allows the average do-it-yourself hot rodder to easily wrap up an LS engine transplant. Initial setup is a breeze with the supplied handheld monitor and by simply answering a few car guy questions during the initial setup, your Atomic LS'd project will be ready to drive.

Features:

  • Integrated Fuel Rails and ECU
  • Wiredless technology reduces wire
  • Self-Tuning
  • No Laptop


Add to Cart

support​

For questions about our website or products:
E-mail: waltshotrods@yahoo.com
​Phone: 317-858-1919

Contact Us

Walt's Hot Rod Shop
55 Mardale Dr.
Brownsburg, IN 46112

Phone: 317-858-1919
​E-mail: waltshotrods@yahoo.com

About Us

Walt Herr established Walt's Hot Rod Shop in 2008, and since then we have continued to perform automotive repairs, execute routine maintenance, and fulfill performance upgrades on all of our customer vehicles. Despite the dismal economy at the start, Walt's Hot Rod Shop proceeds to flourish. We strive to provide our customer's with a one-stop-shopping experience. For services among our specialties, we coordinate activities with top-notch specialists so you can begin to tattoo the asphalt with every product imaginable.   
  • Home
  • Shop
    • American Autowire >
      • Classic Update Series
      • Highway Series
      • Builder / Power Plus Series
      • Universal Series
    • Vintage Air >
      • SureFIt Series
      • Universal Fit Series
      • Front Runner
    • Wilwood >
      • Dynalite Series
      • Dynalite Pro Series
      • Dynapro Series
      • Superlite Series
      • Classic Series
      • Promatrix / Replace
    • Holley >
      • Air & Fuel Delivery
      • LS Engine Components
      • Oil Pans
    • Walt’s Hot Rods
  • Blog
  • About
  • Events
  • Projects
  • Contact