How to Install a Comp Cams Camshaft on Your Classic Chevy: a Step-by-step Guide

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Installing a COMP Cams camshaft on your classic Chevy can significantly enhance its performance. This guide provides a detailed, step-by-step approach to help you through the installation process.

Tools and Materials Needed

  • COMP Cams camshaft
  • Socket set
  • Torque wrench
  • Engine oil
  • Grease
  • Timing chain set
  • Camshaft installation tool (optional)
  • Gasket set
  • Rags and cleaning supplies

Preparation Steps

Before starting the installation, ensure that you have a clean workspace and all the necessary tools and materials ready. Follow these preparation steps:

  • Disconnect the battery to prevent any electrical issues.
  • Remove any components obstructing access to the engine, such as the air cleaner and intake manifold.
  • Drain the engine oil and remove the oil pan if necessary.

Removing the Old Camshaft

To install the new camshaft, you must first remove the old one. Follow these steps:

  • Remove the valve covers and the pushrods.
  • Take off the timing chain cover and remove the timing chain.
  • Unbolt the old camshaft from the engine block.
  • Carefully slide the old camshaft out of the engine.

Installing the COMP Cams Camshaft

Now that the old camshaft is removed, you can proceed with the installation of the new COMP Cams camshaft:

  • Apply a thin layer of grease to the camshaft lobes and journals.
  • Carefully slide the new camshaft into the engine block, ensuring it aligns properly.
  • Secure the camshaft with the bolts you removed earlier, following the manufacturer’s torque specifications.
  • Reinstall the timing chain and cover, ensuring proper alignment with the camshaft.

Reassembling the Engine

After installing the camshaft, it’s time to reassemble the engine:

  • Reinsert the pushrods and reinstall the valve covers.
  • Replace the oil pan and fill the engine with fresh oil.
  • Reattach any components that were removed during the disassembly, including the air cleaner and intake manifold.
  • Reconnect the battery.

Final Checks and Start-up

Before starting your engine, it’s essential to perform a few final checks:

  • Double-check all bolts and connections to ensure they are secure.
  • Ensure that the oil level is correct and that there are no leaks.
  • Crank the engine without starting to build oil pressure.
  • Once satisfied, start the engine and listen for any abnormal noises.

Tuning Your Classic Chevy

After installation, tuning your classic Chevy is crucial for optimal performance. Consider the following:

  • Adjust the timing to match the specifications for your new camshaft.
  • Check the carburetor settings and make adjustments if necessary.
  • Consider a dyno session for precise tuning and performance evaluation.

Conclusion

Installing a COMP Cams camshaft on your classic Chevy can enhance its performance significantly. By following this step-by-step guide, you can ensure a successful installation and enjoy the benefits of improved engine performance.