Step-by-step: Installing a Lunati Camshaft on Your Pontiac 455 for 80 Additional Hp

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Installing a Lunati camshaft on your Pontiac 455 can significantly boost your engine’s performance, adding up to 80 additional horsepower. This guide will walk you through the process step-by-step, ensuring a smooth installation.

Tools and Materials Needed

  • Lunati camshaft kit
  • Torque wrench
  • Socket set
  • Engine hoist
  • Timing chain and gears
  • Oil and oil filter
  • Gasket set
  • Grease
  • Safety glasses
  • Mechanic gloves

Preparation Steps

Before starting the installation, ensure you have all the tools and materials ready. Follow these preparation steps:

  • Disconnect the battery to prevent any electrical issues.
  • Remove the hood for better access to the engine.
  • Drain the engine oil and remove the oil filter.
  • Remove the intake manifold and valve covers.

Removing the Old Camshaft

With the preparation complete, it’s time to remove the old camshaft. Follow these steps:

  • Remove the timing chain cover and timing chain.
  • Unbolt the old camshaft using the socket set.
  • Carefully slide the old camshaft out of the engine block.
  • Inspect the old camshaft for wear and damage.

Installing the Lunati Camshaft

Now, you can proceed to install the Lunati camshaft. Follow these steps closely:

  • Apply a thin layer of grease to the new camshaft’s bearings.
  • Carefully slide the Lunati camshaft into the engine block.
  • Align the camshaft with the timing gears.
  • Secure the camshaft with the bolts, using the torque wrench to tighten them to the manufacturer’s specifications.

Reassembling the Engine

After the camshaft is installed, it’s time to reassemble the engine. Follow these steps:

  • Reinstall the timing chain and gears, ensuring proper alignment.
  • Replace the timing chain cover.
  • Install new gaskets on the intake manifold and valve covers.
  • Reattach the intake manifold and valve covers, tightening the bolts securely.
  • Replace the oil filter and refill the engine with oil.
  • Reconnect the battery.

Final Checks

Before starting the engine, perform these final checks:

  • Double-check all bolts and connections for tightness.
  • Ensure there are no oil leaks around the gaskets and seals.
  • Verify the timing is set correctly.
  • Check the oil level and top off if necessary.

Starting the Engine

With everything in place, it’s time to start the engine:

  • Turn the ignition key to start the engine.
  • Listen for any unusual noises and check for leaks.
  • Let the engine idle for a few minutes to ensure proper lubrication.
  • Take the car for a test drive to experience the added horsepower.

Conclusion

Installing a Lunati camshaft on your Pontiac 455 can dramatically improve performance, giving you that extra horsepower you desire. By following these detailed steps, you can ensure a successful installation and enjoy the benefits of your upgraded engine.