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Hot Rod LS Swap Parts

Premium LS Swap Parts for Custom Hot Rod Builds

Transform your custom hot rod with our top-tier LS swap parts, designed to deliver the power and reliability you need. PSI Conversion offers everything from high-quality, USA-made wiring harnesses with various loom options to PCM tuning services that ensure your engine and transmission are perfectly tuned. Enhance your build with Dakota Digital gauges for precise performance monitoring, sturdy accessory brackets, and quality oil pans.

Our selection also includes universal fit gauges, actuators and poppers, and comprehensive standalone wiring harnesses, making it easy to achieve a seamless and powerful LS swap in your hot rod.

Explore our key products to complete your hot rod LS swap:

  • Universal Fit Gauges: Precision gauges for accurate performance monitoring in any hot rod build.
  • Accessory Brackets: Durable brackets for mounting accessories securely.
  • Actuators & Poppers: Essential components for custom modifications.
  • LS Swap Standalone Wiring Harnesses: Reliable wiring solutions for seamless LS engine integration.

  • Application: 1999-2007 24X Drive by Cable with 4L60E/4L80E Transmission Controller Kit

    This kit includes a complete Standalone Engine harness, MAF sensor, Two Upstream O2 Sensors, TCC Brake Switch, and a PCM Flashed for your application with a mounting bracket giving you a ready to run kit to help simplify your LS swap! All our engine harnesses are professionally constructed from 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.

    $1,099.00

  • Dirty Dingo Motorsports is the leading manufacturer in GM LS conversion engine mounts for Chevrolet and GMC trucks and muscle cars. These Patented Design motor mounts are used when installing the 1997-2013 Gen III/IV LS series engine into older GM muscle cars, trucks and any application that uses a standard three bolt factory style engine mount from 1958 to 1972, and Corvette 1962 to 1991(Corvette 1958 to 1961 will require a frame stand to use a GM three bolt mount).

  • The Highway 22 has long been the flagship universal system for wiring high-tech, high-end custom vehicles. To this point, we’ve seen and heard evidence of customers installing the kit in just about every make or model vintage (and some modern) vehicle, off-road trucks and even industrial equipment. We’re exceptionally grateful to be part of so many builds, and have taken note of some suggestions from over the years to make a great product even better. With those thoughts in mind, American Autowire is pleased to introduce the Highway 22 Plus! Our goal with the changes in the Highway 22 Plus is to preserve the same feel as the original, with some modernization and ease of use improvements for both backyard and professional builders. The full list of new features is below: Each kit will now include a built-in LED flasher to support LED turn signals without the need to purchase an additional item. We’ve added back up light feed and power wires to make the harness easier to install in a more modern vehicle. The pre-installed 20 amp relay can now be easily changed to function as either a keyed 12 volt or ground triggered item. We’ve improved our instructions to cite a wider range of examples and real-world scenarios. The panel labeling has also been updated along with the above physical changes, including wording modifications for enhanced clarity. The wiper circuit has been upgraded to a 20 amp fuse to support all aftermarket wiper systems. This has been made an accessory circuit for more adaptability. The AC/Heat fuse has also been moved to an accessory circuit to eliminate draw from the blower motor while the vehicle is being started. All kits will feature our new high amp alternator and main power connection kit. This allows for the use of high amp alternators, and provides an even better level of fuse protection for the panel and charging system. This new connection kit utilizes 6 ga wire and two 175 amp Megafuses. Extra connectors and wiring have been added to

  • Universal EFI Ready Fuel Tanks Available. Features Include:

    • Alloy Coated Steel
    • 16 Gallon Capacity
    • Vent Required for Fuel Injected Engines
    • Includes Universal Mounting Straps
    • Includes Internal Reservoir Tray for Fuel Injection
    • Fully Baffled
    • Size: 27-3/4" x 17-3/4" x 8-1/2"
    • Includes Drop in Fuel pump assembly Available in 190LPH-450LPH
    • Fuel Sending Unit with multiple OHM ranges available
    • Optional Fuel Line & Regulator Kit



  • Super Competition GM LS-1,Tube Size 1.625", Collector Size 2.5", Port Shape: Round; 304 Stainless Steel Natural Finish

  • Universal Dakota Digital Clusters are a Great Option for your a Digital Cluster needs if There is not a Direct Fit Available for your Ride. These Are Great Options For Custom Dashboard in your Hotrod, Offroad Rig, or Just for your Cool Custom Weekend Cruiser! All Dakota Digital Clusters are Directly Compatible with all our Harnesses and with the use of the BIM-01-2 you can have Plug and Play Gauges with Minimal Wiring.

  • If you can dream it! Get that Big Wang GT3 performance with the Builders Wangs. These Airfoils can produce incredible levels of downforce without killing top speed. Exactly what the current batch of racers are after. These Extruded aluminum wings are developed, patented, and built for Nine Lives Racing. These Lightweight airfoils produce Downforce with an best in class 15.2:1 Lift to drag ratio, making them the best source for downforce in the $200-$1500 price group. Wings are equipped with a built-in gurney flap relief for downforce adjustments in seconds. Compare to other wings on the market, you won't find anything better in this price range.

    Light aluminum construction. Gurney flap ready. up to 15.2:1 Lift Drag ratio. Lightweight 0.2lbs per inch. low drag = more top speed!

    Builders Carbon Fiber Wing

  • Universal 6 Gauge Round, Analog HDX Instruments

    $1,495.00
  • Universal Dual 5.4" Round, Analog VHX Instrument

    $895.00
  • Universal 5.4" Round Trio, Analog VHX Instrument

    $945.00

Frequently Asked Questions

What benefits do LS swap parts offer for hot rod builds?

LS swap parts provide modern reliability, increased power, and improved efficiency for custom hot rod builds, making them more enjoyable to drive and easier to maintain.

How can PCM tuning services enhance my hot rod's performance?

PCM tuning services optimize the engine and transmission settings, ensuring your hot rod runs efficiently and maximizes its power output.

Why are standalone wiring harnesses important for LS swaps in hot rods?

Standalone wiring harnesses simplify the installation process by providing a dedicated system for the LS engine, reducing wiring complexity and improving reliability.

What role do accessory brackets play in an LS swap?

Accessory brackets ensure that components like the alternator, power steering pump, and A/C compressor are securely mounted, maintaining proper alignment and functionality.

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