Step 1: Engine & Transmission Mounts

  • Get that GM LS Engine Mounted in the 1978-1988 GM G-Body
  • Transmission Options: TH400, 200R4, 4L60E, 4L65E, 4L70E, 4L75E, 4L80E, 4L85E, T56, and T56 Magnum
  • Choose The Crossmember Adapter to Match Your Desired Transmission (T56 & T56 Magnum do not need an Adapter)
  • Vehicles That Didn't Come from the Factory w/ the 200R4 Transmisison Need Adapter 12647HKR
Shop Engine and Transmission Mounts

Step 2: Oil Pans

  • The Factory LS Oil Pans Don't Fit or Hang Too Low on an Engine Swap
  • LS Swap Oil Pans Provide Maximum Clearance to the Chassis & Ground
  • OE (Original Equipment) Style Fitment for Durability, Strength, and Proper Sealing
  • Choose From Natural Cast Finish, or Carbon Black Ceramic Finish
  • Complete Oil Pan Kit w/ Sump Baffle, OE Style Pickup, Drain Plug, Oil Filter Stud, and Oil Passage Cover
Shop Oil Pans

Step 3: Exhaust

  • Cat-Back Direct Fit Exhaust
  • Choose from Various Exhaust Manifolds with a Variety of Finishes
  • Choose from 2.5" or 3.0" Dual Exhaust
Shop Exhaust

Step 4: EFI Fuel Tanks

  • Factory Style Fuel Tanks with EFI Fuel Pump Module (Inside Tank)
  • Eliminate Rust & Dirt with a New Fuel Tank
  • EFI Fuel Pump Module - Also Available Separately - Fits Inside Stock Tank Shop Fuel Tanks
Shop Fuel Tanks

Step 5: Radiaotors

  • Dual Pass GM LS Swap Radiator
  • Screw-In Inlet & Outlet - Allows Changes to Match Radiator Hose Sizes
  • Aluminum Construction w/ Cross Flow Design
  • Direct Fit to the GM G-Body
Shop Radiators

Step 6: Swap Accessories

  • Replace the Factory Rag Joint with a Modern Steering Shaft
  • Features U-Joints at Both Ends
Shop Swap Accessories

Step 7: Accessory Drives

  • Choose from High Mount, Low Mount, or Mid Mount Accessory Drive Kits
  • Choose from Natural Aluminum, Black, or Polished Finish
  • Bracket Kits - Allow Reuse of Factory Components (High Mount & Low Mount)
Shop GM LS Accessory Drives

Step 8: Terminator X and X Max

  • Standalone Plug and Play Engine Control for GM LS Engines
  • Terminator X Features Real-Time Fuel Learn, High Impedance Injector Drivers, Integrated 1bar MAP Sensor & 4 Programmable Inputs and Outputs
  • Terminator X Max - also Controls GM Automatic Transmission (4L60/4L65/4L70/4L75/4L80/4L85)
  • Inputs & Outputs Are Ideal for Electric Fans, Boost Control Solenoids, Progressive Nitrous Control & More
Shop Terminator X and X Max LS Kits
  • In Stock
  • Flowtech
  • Frostbite
  • Holley
  • Holley Kits
  • Holley Sniper EFI
  • Hooker
  • Hooker BlackHeart
  • White Box
Product Type
  • Adapter Kit
  • Drive by Wire Accelerator Pedal Assembly
  • Drive by Wire Accelerator Pedal Bracket
  • Engine Mount Insert
  • Engine Mounts
  • Exhaust System
  • Fuel Pump Module
  • Fuel Tank
  • Manifold
  • Oil Pan Kit
  • Radiator
  • Radiator + Fan/Shroud Pkg.
  • Steering Shafts
  • Swap Kits
  • Transmission Crossmember
  • Transmission Mount
  • Virtual Kit
Items 1 - 65 of 65 Items
    1. 1

    Back To Top

    1978-88 GM G-Body LS Swap System

    The G-Body defined the 80’s for many GM fans. These underpowered rides had a great look but couldn’t get out of their own way. Put modern horsepower into your grocery getter with performance products from Holley. Holley has engineered a complete solution of swap components & swap kits to put an LS engine in and the power out.