Step-by-step Chevy Lt Swap: Installing an Ls3 in a 1967 Camaro for Under $7,500

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The 1967 Camaro is an iconic muscle car, and swapping in a modern LS3 engine can significantly enhance its performance. This guide will walk you through the step-by-step process of installing an LS3 in a 1967 Camaro for under $7,500, making it a feasible project for enthusiasts.

Why Choose an LS3 Engine?

The LS3 engine is a popular choice for engine swaps due to its power, reliability, and availability. Here are some reasons to consider the LS3 for your Camaro:

  • Powerful Performance: The LS3 produces around 430 horsepower, providing a significant boost over the original engine.
  • Modern Technology: With fuel injection and advanced engine management, the LS3 is more efficient than older engines.
  • Aftermarket Support: There is a vast array of aftermarket parts and support for the LS3 engine.

Tools and Materials Needed

Before starting the swap, gather the necessary tools and materials:

  • Tools:
    • Socket set
    • Wrenches
    • Engine hoist
    • Torque wrench
    • Cutting tools
  • Materials:
    • LS3 engine
    • Engine mounts
    • Transmission adapter
    • Wiring harness
    • Cooling system components

Step 1: Remove the Old Engine

Begin by removing the existing engine from your Camaro:

  • Disconnect the battery and remove the air cleaner.
  • Drain the coolant and oil from the engine.
  • Disconnect all wiring harnesses and hoses attached to the engine.
  • Unbolt the engine mounts and lift the engine out using the engine hoist.

Step 2: Prepare the LS3 Engine

Once the old engine is out, prepare the LS3 for installation:

  • Inspect the LS3 for any damage and replace worn components.
  • Install the new engine mounts specific to the Camaro.
  • Attach the transmission adapter to the LS3 if necessary.

Step 3: Install the LS3 Engine

Now it’s time to install the LS3 into your Camaro:

  • Carefully lower the LS3 into the engine bay using the engine hoist.
  • Align the engine mounts and secure them in place.
  • Connect the transmission to the LS3 if not already done.

Step 4: Wiring and Electronics

Next, handle the wiring and electronics for the LS3:

  • Install the wiring harness specific to the LS3.
  • Connect the battery and ensure all electrical connections are secure.
  • Install any necessary sensors and modules for the engine management system.

Step 5: Cooling System Installation

The LS3 will require an efficient cooling system:

  • Install a new radiator suitable for the LS3 engine.
  • Connect the hoses from the radiator to the engine.
  • Fill the cooling system with the appropriate coolant mixture.

Step 6: Final Checks and Testing

Before taking your Camaro for a spin, perform final checks:

  • Check all fluid levels and top off if necessary.
  • Inspect all connections and fasteners to ensure they are secure.
  • Start the engine and listen for any unusual sounds.
  • Take the car for a test drive to ensure everything is functioning properly.

Conclusion

Completing an LS3 swap in a 1967 Camaro is a rewarding project that can be done on a budget. With careful planning and execution, you can enjoy the benefits of modern performance in a classic muscle car. Happy wrenching!