Diy Guide: Installing Arp Head Studs on a Mitsubishi 4g63 for Reliable over 600 Hp

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Installing ARP head studs on a Mitsubishi 4G63 engine is a crucial step for those looking to achieve reliable horsepower over 600 HP. This DIY guide will walk you through the necessary steps to ensure a successful installation.

Tools and Materials Needed

  • ARP head stud kit
  • Torque wrench
  • Socket set
  • Ratchet
  • Engine oil
  • Thread sealant (optional)
  • Gasket scraper
  • Clean rags
  • Safety goggles
  • Gloves

Preparation Steps

Before starting the installation, it’s essential to prepare your workspace and the engine. Follow these steps:

  • Ensure the engine is cool and the vehicle is parked on a flat surface.
  • Disconnect the battery to avoid any electrical issues.
  • Remove any components obstructing access to the cylinder head, such as the intake manifold and valve cover.
  • Carefully remove the old head bolts and inspect the cylinder head and block for any damage.

Installing ARP Head Studs

Now that the engine is prepared, you can begin the installation of the ARP head studs. Follow these steps carefully:

  • Clean the threads in the cylinder head and block using a thread cleaner or tap.
  • Apply a small amount of engine oil to the threads of each ARP head stud to ensure accurate torque readings.
  • Install the head studs hand-tight into the block, ensuring they are seated properly.
  • Position the cylinder head onto the block, aligning it with the studs.
  • Install the washers and nuts onto the studs in the correct order.

Torque Specifications

It’s vital to follow the correct torque specifications when tightening the head studs. Refer to the ARP installation instructions for the specific torque values. Generally, the following steps should be taken:

  • Use a torque wrench to tighten the nuts in three stages: first to a low torque, then to a medium torque, and finally to the final torque specification.
  • Follow the recommended torque sequence to ensure even pressure across the cylinder head.
  • After the initial torque, allow the engine to sit for a few minutes before rechecking the torque to ensure stability.

Reassembly and Testing

After successfully installing the ARP head studs, it’s time to reassemble the engine. Follow these steps:

  • Reinstall the valve cover and intake manifold, ensuring all gaskets are in good condition.
  • Reconnect any electrical connectors and hoses that were removed during disassembly.
  • Reattach the battery and double-check all connections.
  • Start the engine and let it idle for a few minutes, watching for any leaks or unusual noises.

Conclusion

Installing ARP head studs on your Mitsubishi 4G63 is a significant upgrade for achieving reliable power over 600 HP. By following this DIY guide, you can ensure a successful installation that enhances your engine’s performance and reliability.