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FX LSx INTERMEDIATE Swap Kit - 4L80 Transmission

FX LSx INTERMEDIATE Swap Kit - 4L80 Transmission

$ 3,699.95

The LOJ Conversions Gen III/IV Chevrolet LS Engine into FX Intermediate 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 3 or 4 engine into your FX is included with this kit.
This kit is designed for the 4L80 Transmission (2WD Slip-Yolk Versions)
The INTERMEDIATE Kit Includes (parts added over basic 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, and Spin-On Filter Mount)
  • 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


  • 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!

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