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1973-1975 Buick Apollo - LS Swap

The age-old equation of "Big Engine + Small Car = Big Fun" applies here. The X-Body is a lightweight package just aching for an extra 2-300 horsepower, and there's no better way to deliver that than with a Gen III/IV GM LS engine. Make your swap a bolt-in affair with our platform-engineered swap systems.

Step 1: Engine and Transmission Mounts

  • Mount the GM LS Engine in your 1968-1974 GM X-Body
  • Transmission Crossmember Options: 4L60E, 4L65E, 4L70E, 4L75E, 4L80E, 4L85E, 200R4, 700R4, Powerglide, T56, T56 Magnum, TH350, or TH400
  • Designed For Use w/ Swap Oil Pans, Headers, and Exhaust Systems Designed for This Application
  • Provides the highest clearance available for up to 3" exhaust system routing
  • Easy Bolt-in Installation of Your Engine
Shop Mounts and Crossmembers

Step 2: Oil Pans

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

Step 3: Exhaust

  • Choose from Long-Tube or Mid-Length Headers in Mild Steel or Stainless Steel
  • 304 Stainless Steel Exhaust Systems - Choose from 2-1/2" or 3" Dual Exhaust
  • Mid-Length Adapters & Reducers to Complete the System
  • Long Tube Headers Are Direct Fit to the Exhaust Systems
Shop Exhaust

Step 4: EFI Fuel Tanks

  • EFI Fuel Tanks Come with High Pressure Internal Fuel Pump
  • Eliminate Rust and Dirt with a New Fuel Tank
  • EFI Fuel Pump Module - Also Available Separately - Fits Inside Stock Fuel Tank
Shop Fuel Tanks

Step 5: Radiators

  • Dual Pass LS Swap Radiator
  • Screw-In Inlet & Outlet - Allows Changes to Match Radiator Hose Sizes
  • Aluminum Construction with Cross Flow Design
  • Direct Fit in 1968-1974 GM X-Body
Shop GM LS Engine Swap Radiators

Step 6: 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 LS and LT Accessory Drives

Step 7: 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

Step 8: Universal LS Swap Parts

  • Find Your Parts
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