Cometic Head Gasket Install on a Honda Civic: Step-by-step Guide to a 20 Hp Increase

Upgrading your Honda Civic’s head gasket with a Cometic head gasket can lead to a significant performance boost. In this guide, we will walk you through the step-by-step process of installing a Cometic head gasket to achieve a 20 horsepower increase.

Why Upgrade to a Cometic Head Gasket?

Cometic head gaskets are known for their durability and ability to withstand higher levels of pressure. Here are some reasons to consider this upgrade:

  • Improved sealing capabilities
  • Higher horsepower potential
  • Enhanced engine performance
  • Resistance to blowouts

Tools and Materials Needed

Before starting the installation, gather the following tools and materials:

  • Cometic head gasket kit
  • Torque wrench
  • Socket set
  • Ratchet
  • Engine oil
  • Clean rags
  • Gasket scraper
  • Thread locker
  • Engine assembly lubricant

Step-by-Step Installation Process

Step 1: Preparation

Begin by disconnecting the battery. This ensures safety while working on the engine.

Step 2: Remove the Intake and Exhaust Manifolds

Carefully remove the intake and exhaust manifolds. Label all connections to make reassembly easier.

Step 3: Remove the Cylinder Head

Unbolt the cylinder head using the appropriate socket. Make sure to follow the correct sequence to avoid warping.

Step 4: Clean the Surface

Use a gasket scraper to clean the cylinder head and engine block surfaces thoroughly. This step is crucial for a proper seal.

Step 5: Install the Cometic Head Gasket

Place the Cometic head gasket onto the engine block, ensuring it is aligned correctly with the bolt holes.

Step 6: Reinstall the Cylinder Head

Carefully place the cylinder head back onto the engine block. Make sure it fits snugly over the new gasket.

Step 7: Torque the Head Bolts

Using a torque wrench, tighten the head bolts to the manufacturer’s specifications. Follow the correct sequence to ensure even pressure.

Step 8: Reattach the Manifolds

Reinstall the intake and exhaust manifolds, reconnecting all hoses and electrical connections as labeled.

Step 9: Reconnect the Battery

Once everything is back in place, reconnect the battery to complete the installation.

Step 10: Test Drive

Start the engine and allow it to warm up. Take your Honda Civic for a test drive to experience the performance increase.

Conclusion

Installing a Cometic head gasket on your Honda Civic can lead to a noticeable increase in horsepower and overall engine performance. By following these steps carefully, you can achieve the desired results and enjoy the benefits of your hard work.