Cylinder Heads

What Do Cylinder Heads Do?

Cylinder heads play a crucial role in the performance and functionality of your engine. They are key components in the combustion process of an internal combustion engine, such as a small block Chevy (SBC) engine. Here's what cylinder heads do:

• Combustion Chamber: Cylinder heads enclose the combustion chamber where air and fuel mix and ignite, generating power to drive the engine.
• Valve Operation: They house the intake and exhaust valves, controlling the flow of air and exhaust gases in and out of the cylinders.
• Compression: Cylinder heads contribute to creating compression within the cylinders, which is essential for efficient combustion.
• Heat Dissipation: They help dissipate heat generated during combustion, preventing overheating of the engine.

High-performance cylinder heads, such as SBC aluminum heads, can significantly impact engine power and efficiency.

When Should Cylinder Heads Be Replaced?

The need to replace cylinder heads can vary depending on several factors, including engine usage, maintenance, and performance goals. Here are some situations when cylinder head replacement may be necessary:

• Damage: If the cylinder heads are damaged due to overheating, cracking, or warping, they should be replaced to prevent engine problems.
• Performance Upgrades: Enthusiasts often replace stock cylinder heads with high-performance options like SBC aluminum heads to increase power and efficiency.
• Maintenance: If routine maintenance reveals issues like valve seat recession or worn components, it may be time for replacement.

How Much Does a New Cylinder Head Cost?

The cost of a new cylinder head can vary widely based on factors such as the make and model of your vehicle, the type of cylinder head (e.g., SBC aluminum heads), and whether you choose stock or performance-oriented options. On average, you can expect to invest anywhere from $200 to $1,500 or more for a single cylinder head.

Keep in mind that if you're upgrading to high-performance cylinder heads, the price may be higher, but the potential gains in power and efficiency can be substantial.