Mopar 340 Camshaft Swap: How to Gain 40 Hp with Summit Racing Parts

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The Mopar 340 engine is renowned for its performance and potential. One of the most effective ways to enhance its power output is by swapping the camshaft. This article will guide you through the process of a Mopar 340 camshaft swap, demonstrating how you can gain 40 horsepower using parts from Summit Racing.

Understanding the Mopar 340 Engine

The Mopar 340 engine, produced from 1968 to 1973, is a small-block V8 that has become a favorite among car enthusiasts. With a displacement of 340 cubic inches, it was designed for performance, making it a prime candidate for modifications. The stock camshaft, while capable, can be improved upon for better power delivery and responsiveness.

Benefits of a Camshaft Swap

Swapping the camshaft in your Mopar 340 can lead to significant performance gains. Here are some benefits:

  • Increased Horsepower: A performance camshaft can add up to 40 horsepower.
  • Improved Torque: Enhanced torque curves can lead to better acceleration.
  • Better Throttle Response: A new camshaft can improve engine responsiveness.
  • Customized Performance: Tailor your engine’s performance to your driving style.

Selecting the Right Camshaft

Choosing the right camshaft is crucial for achieving the desired performance. When selecting a camshaft for your Mopar 340, consider the following factors:

  • Lift and Duration: Higher lift and longer duration can lead to more power but may require additional modifications.
  • RPM Range: Ensure the camshaft matches your engine’s RPM range for optimal performance.
  • Compatibility: Check compatibility with your existing engine components.

Summit Racing offers a variety of camshafts suitable for the Mopar 340. Here are a few recommended options:

  • Summit Racing Stage 1 Camshaft: A great choice for street performance, providing a noticeable power increase.
  • Summit Racing Stage 2 Camshaft: Ideal for those looking for a more aggressive setup with higher RPM potential.
  • Comp Cams Xtreme Energy Cam: Known for its excellent throttle response and power band.

Tools and Parts Needed for the Swap

Before starting the camshaft swap, gather the necessary tools and parts to ensure a smooth process:

  • Tools:
    • Socket set
    • Torque wrench
    • Engine hoist (if necessary)
    • Timing light
    • Oil filter wrench
  • Parts:
    • New camshaft
    • Camshaft installation kit
    • New lifters
    • Timing chain or belt (if needed)
    • Engine oil

Step-by-Step Camshaft Swap Process

Follow these steps to successfully swap the camshaft in your Mopar 340:

  • Step 1: Disconnect the battery and drain the engine oil.
  • Step 2: Remove the intake manifold and valve covers.
  • Step 3: Remove the timing chain cover and timing chain.
  • Step 4: Remove the old camshaft and lifters.
  • Step 5: Install the new camshaft and lifters, ensuring proper alignment.
  • Step 6: Reinstall the timing chain and cover.
  • Step 7: Replace the valve covers and intake manifold.
  • Step 8: Refill the engine with oil and reconnect the battery.
  • Step 9: Start the engine and check for proper operation.

Final Thoughts

Swapping the camshaft in your Mopar 340 can transform your vehicle’s performance, providing a significant horsepower boost. With the right parts from Summit Racing and careful installation, you can enjoy the benefits of increased power and responsiveness. Always remember to consult with professionals or experienced enthusiasts if you have questions during the process.