Installing a Mopar Stage 1 Performance Kit: Step-by-step Guide for Plymouth Road Runner

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The Plymouth Road Runner is an iconic muscle car that has captured the hearts of automotive enthusiasts since its debut in the late 1960s. For those looking to enhance the performance of their Road Runner, installing a Mopar Stage 1 Performance Kit can be a game-changer. This guide will provide a detailed, step-by-step process for installing this performance kit, ensuring that you get the most out of your vehicle.

What is a Mopar Stage 1 Performance Kit?

The Mopar Stage 1 Performance Kit is designed to improve the horsepower and torque of your Plymouth Road Runner. This kit typically includes a high-performance intake manifold, carburetor, camshaft, and various other components that work together to enhance engine performance. By upgrading these parts, drivers can experience better acceleration, improved throttle response, and an overall boost in driving enjoyment.

Tools and Materials Needed

  • Mopar Stage 1 Performance Kit
  • Socket set
  • Wrenches
  • Screwdrivers
  • Torque wrench
  • Shop towels
  • Engine oil
  • Coolant
  • Safety glasses
  • Gloves

Preparation Steps

Before diving into the installation, it’s crucial to prepare your workspace and vehicle. Follow these steps to ensure a smooth process:

  • Park the Road Runner on a flat surface and engage the parking brake.
  • Disconnect the battery to prevent any electrical issues during the installation.
  • Gather all tools and materials in an organized manner.
  • Read through the installation manual provided with the Mopar Stage 1 Performance Kit.

Step-by-Step Installation Guide

Step 1: Remove the Stock Components

Begin by removing the stock components that will be replaced by the performance kit. This includes the intake manifold, carburetor, and camshaft. Carefully follow these sub-steps:

  • Detach the air cleaner assembly and set it aside.
  • Remove the throttle linkage and any vacuum hoses connected to the carburetor.
  • Unbolt the carburetor from the intake manifold and lift it off.
  • Remove the intake manifold bolts and carefully lift the manifold off the engine.
  • Remove the old camshaft, following the manufacturer’s instructions for timing and alignment.

Step 2: Install the New Camshaft

With the old camshaft removed, it’s time to install the new one from the Mopar Stage 1 Performance Kit. Ensure you follow these steps carefully:

  • Apply a light coat of engine oil to the new camshaft.
  • Align the camshaft with the timing marks and carefully insert it into the engine block.
  • Secure the camshaft in place according to the manufacturer’s specifications.

Step 3: Install the New Intake Manifold

Next, install the new intake manifold that comes with the performance kit. Follow these instructions:

  • Place a new gasket on the engine block to ensure a proper seal.
  • Carefully position the new intake manifold over the gasket and align it with the bolt holes.
  • Hand-tighten the intake manifold bolts, then use a torque wrench to tighten them to the specified torque settings.

Step 4: Install the New Carburetor

With the intake manifold securely in place, you can now install the new carburetor:

  • Place a new gasket on top of the intake manifold.
  • Position the carburetor on top of the gasket and align it with the bolt holes.
  • Secure the carburetor with the provided bolts and reconnect the throttle linkage and vacuum hoses.

Step 5: Reassemble the Air Cleaner Assembly

Once the carburetor is installed, reattach the air cleaner assembly:

  • Position the air cleaner base over the carburetor and secure it with the wing nut.
  • Ensure that the air filter is clean and properly seated within the air cleaner.

Step 6: Reconnect the Battery and Check Fluid Levels

After everything is assembled, reconnect the battery. Before starting the engine, check the following:

  • Ensure the engine oil level is adequate and top off if necessary.
  • Check the coolant level and add more if needed.

Step 7: Start the Engine

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

  • Turn the ignition key and let the engine idle for a few minutes.
  • Listen for any unusual noises and check for leaks around the intake manifold and carburetor.
  • If everything sounds good, take the Road Runner for a test drive to experience the enhanced performance.

Conclusion

Installing a Mopar Stage 1 Performance Kit on your Plymouth Road Runner can significantly enhance its performance and driving experience. By following this step-by-step guide, you can ensure a successful installation and enjoy the benefits of increased horsepower and torque. Always remember to follow safety precautions and consult a professional if you are unsure about any part of the installation process.