Step 1: Engine and Transmission Mounts

  • Choose from Engine Mounts that Move the Engine Slightly Forward, or Standard Mounts w/ the Bellhousing in the Same Location as the Standard Small Block
  • The Forward Mounts Are Best for Late Model Transmissions Since this Minimized Modifications to the Transmission Tunnel
  • The Standard Mounts are Best for Classic Transmissions Since the Driveshaft Can Remain Stock & They Fit Fine inside the Transmission Tunnel
  • These Mounts Fit all GM LS Engines in the 1968-1972 GM A-Body
  • Compatible with Swap Headers, Exhaust Systems, and Swap Oil Pans
  • Transmission Crossmember Works with the Following Transmissions: T56, T56 Magnum, 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, TH400, and 200R4
  • Optional Spacers are Required with Some of the Transmissions
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 and 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, Drain Plug, Oil Filter Stud, and Oil Passage Cover
Shop Oil Pans

Step 3: Headers and Exhaust Manifolds

  • Choose from Mid-Length Headers, Long-Tube Headers, or Exhaust Manifolds
  • Headers are Available in Stainless Steel or Mild Steel Construction
  • Choose from Natural Stainless or Cast Iron, Ceramic Coated, or Painted Finishes
  • 1-3/4" or 1-7/8" Primary Tube Diameter
Shop Headers and Exhaust Manifolds

Step 4: Exhaust

  • Choose from 2-1/2" or 3" Dual Exhaust Systems
  • Systems for 2-Door, or Wagon/El Camino/4-Door Vehicles
  • Adapter Pipes for Mid-Length, Long-Tube, and Exhaust Manifolds
  • 304 Stainless Steel Construction
Shop Exhaust Systems

Step 5: Fuel Tanks

  • Factory Style Fuel Tanks with In-Tank EFI Fuel Pump Module
  • Eliminate Rust & Dirt with a New Fuel Tank
  • EFI Fuel Pump Modules Are Also Available Separately - Fits in Stock Tank
Shop Fuel Tanks

Step 6: 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 GM A-Body
  • Holley Radiator Kits Include the Radiator, Fan Shroud, Dual Electric Fans, Relay w/ Thermostat, and Hose Fittings
Shop Radiators

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
  • Brothers Trucks
  • Flowtech
  • Frostbite
  • Holley
  • Holley Kits
  • Holley Sniper EFI
  • Hooker BlackHeart
  • White Box
  • 11-Gauge Steel
  • 304 Stainless Steel
  • Aluminum
  • Cast Iron
  • Mild Steel
  • Polyurethane
  • Steel
  • Steel and Plastic
Product Type
  • Adapter Kit
  • Engine & Transmission Mount Kit
  • Engine Mount Insert
  • Engine Mounts
  • Exhaust System
  • Fuel Pump Module
  • Fuel Tank
  • Headers
  • Manifold
  • Oil Pan Kit
  • Radiator
  • Radiator + Fan/Shroud Pkg.
  • Transmission Crossmember
  • Transmission Mount
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    1968-72 GM A-Body LS Swap System

    LS Swap Components & swap kits for 1968-72 GM A-Body Vehicles. Nothing beats the power of modernizing with a complete LS swap system. From fuel injection, manifolds and fuel pumps all the way to the exhaust system. Holley has engineered these parts to work as a system to deliver the most power and proper fit.