Why Does My BluePrint Engine Use Aluminum Cylinder Heads?

 What Are Aluminum Cylinder Heads?

Aluminum cylinder heads are manufactured from high-strength aluminum alloy instead of cast iron.

They perform the same basic functions:

• House the valves
• Direct airflow into and out of the engine
• Support the combustion chambers
• Transfer heat away from the combustion process

However, aluminum offers several performance advantages over cast iron.

Why Does BluePrint Use Aluminum Cylinder Heads?

Many BluePrint performance engines are designed for:

• Street performance
• Street/strip applications
• Drag racing
• Restomods
• Muscle cars
• Performance trucks

Aluminum cylinder heads help support the horsepower, torque, and drivability goals of these applications.

What Are The Advantages Of Aluminum Heads?

Reduced Weight

One of the biggest advantages of aluminum heads is weight reduction.

Benefits include:

• Reduced front-end vehicle weight
• Improved weight distribution
• Easier installation
• Improved overall vehicle performance

In many applications, aluminum heads can save significant weight compared to cast iron counterparts.

Improved Heat Dissipation

Aluminum transfers heat more efficiently than cast iron.

Benefits include:

• Reduced combustion temperatures
• Improved detonation resistance
• More stable operating temperatures
• Better performance under load

Increased Performance Potential

Many BluePrint aluminum cylinder heads feature:

• Larger intake ports
• Improved exhaust flow
• Modern combustion chamber designs
• Larger valve options

These features help support increased:

• Horsepower
• Torque
• Throttle response

Can Aluminum Heads Support More Compression?

Generally, yes.

Because aluminum transfers heat more efficiently, many performance combinations can support slightly higher compression ratios than a similar cast iron combination when using the proper fuel.

Always follow the fuel recommendations for your specific engine.

Are Aluminum Heads Reliable?

Yes.

Modern aluminum cylinder heads are extremely durable and are commonly used in:

• Street vehicles
• Racing vehicles
• Daily drivers
• Towing applications
• High-performance builds

When properly maintained, aluminum heads provide excellent long-term durability.

Do Aluminum Heads Require Special Coolant?

Not necessarily.

However, BluePrint recommends:

• Quality coolant
• Proper coolant mixture
• Distilled water when mixing coolant

This helps maximize corrosion protection and cooling system life.

Can I Use Aluminum Heads With Iron Blocks?

Yes.

Many BluePrint engine combinations utilize:

• Cast iron blocks
• Aluminum cylinder heads

This is one of the most common combinations used in high-performance engines.

Why Can't I Read Coolant Temperature From Certain Aluminum Heads?

Some BluePrint aluminum cylinder heads do not utilize the traditional coolant temperature sender location found on older factory cast iron cylinder heads.

In these cases, coolant temperature sensors should be installed in the intake manifold or designated sensor ports.

Always verify the correct sensor location for your application.