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Difference between Aluminum and Iron Heads

Difference between Aluminum and Iron Heads

Choosing between aluminum and iron heads for your engine can be a difficult decision. Both have their own benefits and drawbacks that you need to consider before making a choice. In this article, we’ll take a look at the difference between aluminum and iron heads so you can make an informed decision.

What is Aluminum Head?

Aluminum heads are commonly used in performance engines. They are lighter than cast-iron heads, and they dissipate heat better, which can improve power and fuel efficiency. Aluminum heads can also be designed to provide more airflow, which can further improve performance.

One downside of aluminum heads is that they are more expensive than cast-iron heads. Aluminum heads are also more vulnerable to damage from heat and corrosion. As a result, they require more careful maintenance than cast-iron heads. When properly maintained, however, aluminum heads can provide significant benefits for performance engines.

What is Iron Head?

Iron Head is a slang term for the cylinder heads used in some V8 engines. The Iron Head name comes from the fact that these heads are usually made from cast iron. Iron heads are typically found on older vehicles, as they are not as efficient as aluminum heads. Iron heads are also heavier than aluminum heads, which can negatively affect performance.

However, Iron heads are typically more durable than aluminum heads, which makes them a good choice for certain applications. When choosing between Iron and aluminum heads, it is important to weigh the pros and cons of each option to determine which is best for your needs.

Difference between Aluminum and Iron Heads

Aluminum heads are generally lighter than iron heads, which is an advantage when it comes to engine performance. Aluminum is also a better conductor of heat, so it dissipates heat more quickly than iron. Aluminum heads are also less likely to crack under high temperatures and pressures. However, iron heads are stronger overall, so they can withstand more wear and tear. They’re also less expensive to produce than aluminum heads. As a result, iron heads are generally used in heavy-duty applications, while aluminum heads are used in lighter-duty applications.


There are several important differences between aluminum and iron heads. Weight, heat dissipation, and durability are some of the most important factors to consider when choosing a head for your next project. We hope this article has helped you better understand the difference between aluminum and iron heads so that you can make an informed decision about which one is best for you.

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