Are Mopar Performance 340 Heads Worth the Price? Power Gains and Cost Analysis

The Mopar Performance 340 heads have long been a topic of discussion among automotive enthusiasts, particularly those interested in the classic Chrysler small-block engines. With their potential for significant power gains, many wonder if the investment in these heads is truly justified. In this article, we will delve into the performance capabilities of Mopar 340 heads, analyze their costs, and help you determine if they are worth the price.

Understanding Mopar Performance 340 Heads

The Mopar 340 heads were designed for the Chrysler 340 engine, which was originally produced in the late 1960s and early 1970s. These heads are known for their high-flow characteristics and excellent performance potential. They feature larger valves and improved port designs compared to stock heads, allowing for better airflow and combustion efficiency.

Specifications of Mopar 340 Heads

  • Intake Valve Diameter: 2.02 inches
  • Exhaust Valve Diameter: 1.60 inches
  • Chamber Volume: 68 cc
  • Port Size: 180 cc

These specifications highlight the advantages that Mopar 340 heads have over their stock counterparts. The larger valves and optimized port sizes contribute to increased airflow, which is crucial for enhancing engine performance.

Power Gains from Upgrading to Mopar 340 Heads

One of the primary reasons for upgrading to Mopar Performance 340 heads is the potential for substantial power gains. When properly installed and tuned, these heads can significantly increase horsepower and torque, making them a popular choice for performance builds.

Estimated Power Gains

While actual power gains can vary based on several factors, including engine condition and supporting modifications, many enthusiasts report the following estimated gains:

  • Horsepower Increase: 30-50 hp
  • Torque Increase: 25-40 lb-ft

These gains can make a noticeable difference in overall vehicle performance, especially when combined with other upgrades such as camshafts and intake manifolds.

Cost Analysis of Mopar 340 Heads

When considering whether Mopar Performance 340 heads are worth the price, it is essential to analyze the costs involved. The price of these heads can vary significantly based on factors such as condition, whether they are new or used, and any additional modifications that may be necessary.

Price Range

As of 2023, the price range for Mopar 340 heads is typically:

  • New Heads: $1,200 – $1,800
  • Used Heads: $600 – $1,200

While the initial investment may seem high, it is crucial to consider the long-term benefits and performance enhancements that these heads can provide.

Factors Influencing the Decision

Several factors can influence your decision on whether to invest in Mopar 340 heads. Understanding these factors can help you make an informed choice that aligns with your performance goals and budget.

1. Engine Build Goals

Consider what you want to achieve with your engine build. If your goal is to maximize horsepower and torque for racing or performance driving, the investment in 340 heads may be worthwhile.

2. Supporting Modifications

Upgrading to Mopar 340 heads often requires additional modifications to fully realize their potential. This may include upgrading the camshaft, intake manifold, and exhaust system. Ensure that your budget accounts for these necessary upgrades.

3. Vehicle Usage

Consider how you plan to use your vehicle. If it is primarily for street use, you may not need the extensive power gains provided by 340 heads. However, for track use or high-performance applications, they can be a valuable addition.

Conclusion: Are Mopar Performance 340 Heads Worth the Price?

Ultimately, the decision to invest in Mopar Performance 340 heads depends on your specific goals and circumstances. If you are looking for significant power gains and are willing to invest in supporting modifications, these heads can be a worthwhile addition to your engine build. However, if your needs are more modest, you may want to consider other options that fit your budget and performance expectations.

In conclusion, Mopar 340 heads offer a unique opportunity to enhance the performance of your Chrysler small-block engine. By carefully weighing the costs and potential gains, you can make an informed decision that aligns with your automotive aspirations.