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1978-1988 Oldsmobile Cutlass Calais - LS Swap

For 1978, the Olds Cutlass downsized to stay competitive in the evolving domestic car market. While the malaise era G-bodies weren't great performers in stock form, the capable architecture they were built upon lent them to hot rodding. If your G-Body needs a shot in the arm, our LS swap systems can help you get the job done.

Step 1: Engine and 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 Mounts and Crossmembers

Step 2: Oil Pans

  • Factory oil pans don't fit or they hang too low on engine swaps
  • Engine swap oil pans provide maximum clearance to the chassis and ground
  • OE (Original Equipment) style fitment for durability, strength, and proper sealing
  • Choose from natural aluminum casting, carbon black ceramic finish, or fabricated sheetmetal depending on the application
  • Complete kit with sump baffle, OE style pickup, drain plug, oil filter stud, and oil passage cover
Shop Engine Swap Oil Pans

Step 3: Exhaust Manifolds and Systems

  • Exhaust Manifolds Work Together with the Motor Mounts & Crossmembers for an Easy Engine Swap
  • Cast Iron Exhaust Manifolds in a Variety of Finshes
  • Choose from 2.25" or 2.5" Collector Sizes
  • Cat-Back Exhaust Systems available in 304 or 409 stainless steel
  • Choose from 2.5" or 3.0" Dual Exhaust
Shop Exhaust

Step 4: EFI Fuel System

  • 40+ high-pressure in-tank sending units designed for EFI conversions using your stock fuel tank.
  • External, inline complete fuel pumps kits including all necessary hardware and fittings to return fuel into your tank.
  • A Sniper In-Tank Fuel Module is the easiest way to convert your vehicle to an in-tank EFI fuel system, available in return and returnless versions.
  • 200+ application specific fuel tank upgrades designed for use with Sniper EFI.
Shop Fuel Systems and Accessories

Step 5: Radiators

  • 100% TIG welded (brazed) seams
  • Billet Aluminum Filler Neck and OEM style Brass Petcock
  • Polished top and tanks for custom show appearance
Shop GM LS Engine Swap 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 LS and LT 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

Step 9: Universal LS Swap Parts

  • Find Your Parts
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