FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission
FX LSx MASTER Swap Kit - 4L80 Transmission

FX LSx MASTER Swap Kit - 4L80 Transmission

Regular price $ 7,099.95

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The LOJ Conversions Gen III/IV Chevrolet LS Engine into FX Master Swap kit is a more comprehensive engine installation package for the 2003-2008 Infiniti FX35 and FX45 SUV. This kit has been engineered specifically for the FX to make the installation of your LS engine and 4L80 Transmission combination as simple as possible. Every component required to successfully bolt an LSx Gen 4 engine into your FX is included with this kit.
This kit is designed for the 4L80 Transmission (2WD Slip-Yolk Version)
The MASTER Kit Includes (parts added over intermediate kit in red):
  • LOJ LSx to FX Motor Mounts (CNC Cut and Bent Motor Mount Brackets, Billet Aluminum Mount Pedestals with Energy Suspension Polyurethane Inserts, Brackets are powdercoated for durability and include hardware)
  • LOJ FX Swap Transmission Mount for 4L80 Transmission with Energy Suspension Transmission Mount 
  • LOJ LSx to FX Oil Pan (7qt Capacity, Road Race Baffling, Dipstick, Pickup Tube, Gasket, Hardware, Spin-On Filter Adapter)
  • Includes Aluminum Driveshaft w/ 1410 Series U-Joints and Differential Adapter (CARBON FIBER Optional; Steel not available for FX due to length and driveshaft critical speed)
  • LOJ Conversions FX Swap Fuel System. Includes a completely new fuel sending unit assembly with high flow fuel pump and upgraded fuel pressure regulator to feed your LSx engine up to 600WHP. Also includes necessary fuel line to connect to OEM GM LS Car Fuel Rails in Engine Bay.
  • LOJ Conversions LSx to FX35 Accessory drive kit. This allows your stock Alternator and AC Compressor (optional) to bolt directly to the LSx engine while retaining your factory plumbing and wiring.
    • Must use 2003-2006 Nissan 350Z or Infiniti G35 Power Steering Pump and FX35 RWD High Pressure Power Steering Hose
    • Can use FX35 or FX45 Alternator
    • Must use FX35 AC Compressor. FX45 Must Swap Compressor AND High/Low Pressure AC Hoses
  • LOJ Conversions Gen 4 58X Engine Controller package, which includes:
    • Brand New Engine wiring harness specifically designed for the installation of any Gen 4 58X LS engine into your FX. Harnesses are constructed with Brand New GM Delphi Connectors, and TXL (Polyethylene Cross Linked) High Temperature Wire to GM Specifications. All harnesses are 100% Quality Inspected prior to shipping. Harnesses are designed to work with GM's E38 Gen 4 ECM.
    • CANBUS Translator. This device allows maximum integration of the GM LS Engine Controller with the Infiniti FX's existing systems. What does this mean?
      • Your stock Infiniti throttle pedal will operate the GM throttle body. There is NO NEED to swap pedals or to convert to drive by cable!
      • Your factory tachometer will function properly. There is NO NEED to install costly aftermarket gauges or hack up your interior!
      • Your factory coolant temp gauge will function properly.
      • Your factory check engine light will function properly.
      • Your factory HVAC Climate Controls will function as stock, including AIR CONDITIONING, when using the LOJ Accessory Drive Kit and the stock AC compressor. 
      • Your factory ABS will function properly.
      • Your factory OBD2 will read all vehicle and engine data, and can be used for tuning the GM ECU as well as emissions related testing and diagnostics functions.
      • THE ELECTRONICS IN THIS KIT DO NOT SUPPORT GEN 3 ENGINES!!! You MUST have an engine with a 58x reluctor wheel, found on most 2007+ engines. If you're not sure what you have, CONTACT US!
    • LOJ Conversions Engine Swap Headers by Kooks Custom Headers. These are 1-7/8" Primary, 3" Collector, full Stainless Steel Construction with Merge Collectors, O2 bungs, 3/8" Thick Flanges, Hardware, and Gaskets. Headers are TIG welded and flanges are ground flat after construction. Headers are assembled in a CNC fixture for a consistent and perfect fit every time. Headers include a lifetime warranty for the original purchaser.


    • Installation of this kit WILL require modifications to the transmission tunnel to clear the bellhousing and transmission. Additional clearance will be needed to clear the transmission electrical connector as well.
    • This kit is intended for 2WD FX ONLY. The GM AWD transmission options are not compatible with the layout of the FX. If you own an AWD FX, LOJ Conversions offers AWD to 2WD conversions kits!


      I was reminded this morning, two years after I bought my Z32 swap kit what a great company this is. LOJ is always there with excellent advice, not just great products. Best customer service of any company I’ve ever dealt with, and the highest quality swap parts available. If you want an easy, bolt in swap, this is it. Click Here to See Review

      David S.

      That's the thing with an engine swap... we don't know what's gunna happen... unless you're buying a swap kit from LOJ Conversions for your 350Z with an LS... Those kits work, they're good! Click Here for Video

      Al and Woody - The Skid Factory