Are GT40 heads any good?
When it comes to enhancing the performance of your Ford engine, GT40 heads are often a topic of discussion among car enthusiasts and mechanics alike. Known for their unique design and performance capabilities, these cylinder heads have gained a reputation in the automotive community. In this article, we will explore the benefits and considerations of using GT40 heads, helping you determine if they are the right choice for your vehicle.
What Are GT40 Heads?
GT40 heads are a type of cylinder head originally designed for the Ford Mustang and other Ford vehicles in the 1990s. They were part of the Ford Performance Parts lineup and were used on the Ford Explorer and Mustang GT models. These heads are known for their improved airflow and combustion efficiency compared to earlier designs, making them a popular upgrade for performance enthusiasts.
Benefits of GT40 Heads
There are several advantages to using GT40 heads on your engine:
- Improved Airflow: GT40 heads feature larger intake and exhaust ports, which allow for better airflow. This can lead to increased horsepower and torque, especially at higher RPMs.
- Better Combustion Efficiency: The design of the combustion chamber in GT40 heads promotes more efficient fuel burning, which can enhance overall engine performance.
- Compatibility: These heads are compatible with a variety of Ford engines, making them a versatile option for many builds.
- Cost-Effective Performance Upgrade: Compared to other high-performance heads, GT40 heads are relatively affordable, making them an attractive option for budget-conscious enthusiasts.
Considerations When Using GT40 Heads
While GT40 heads offer numerous benefits, there are some considerations to keep in mind:
- Installation Requirements: Upgrading to GT40 heads may require additional modifications, such as new intake manifolds or headers, to maximize their performance.
- Potential for Overheating: If not properly tuned, engines with GT40 heads can run hotter than stock setups, which may necessitate cooling system upgrades.
- Performance Limitations: While GT40 heads are a significant improvement over stock heads, they may not provide the same level of performance as more advanced aftermarket options.
Conclusion
In summary, GT40 heads can be an excellent choice for those looking to enhance the performance of their Ford engine without breaking the bank. With improved airflow and combustion efficiency, they offer a solid upgrade for both street and performance applications. However, it's essential to consider the installation requirements and potential limitations to ensure they meet your specific performance goals. If you're contemplating an upgrade, consulting with a knowledgeable mechanic can help you make the best decision for your vehicle.
Frequently Asked Questions
Where are Edelbrock heads made?
The Edelbrock Sand Cast and Permanent Mold Manufacturing foundries are located in San Jacinto, CA.
What is the rarest GT40?
One of the rarest of its kind. This 1966 GT40 MkI, P/1034, is one of only 31 ever produced and claimed a top spot at #MecumKissimmee! As the very first 'production road car' delivered to a private owner, it represents a significant chapter in automotive history.
What makes the Ford GT40 so special?
The Ford GT40 is a high-performance mid-engined racing car originally designed and built for and by the Ford Motor Company to compete in 1960s European endurance racing. Its specific impetus was to best Scuderia Ferrari, which had won the prestigious 24 Hours of Le Mans race for six years running from 1960 to 1965.
How many cc are GT40 heads?
They have 1.840/1.540 valves, with 64-66cc chambers.
Why is the Ford GT40 so special?
All chassis versions were powered by a series of American-built Ford V8 OHV engines modified for racing. In the 1966 Le Mans, the GT40 Mk II car broke Ferrari's winning streak, making Ford the first American manufacturer to win a major European race since Jimmy Murphy's Duesenberg in the 1921 French Grand Prix.
Which is better, GT40 or GT40P?
GT40 vs GT40P, which are better? Really, when you get down to it, neither head is any measurable difference better than the other. The GT40P does have a slight edge over the GT40 cylinder head because of its smaller chamber volume. The smaller combustion chamber can net a bit more compression, but only marginally.
Does upgrading heads increase horsepower?
Needless to say, the cylinder head is a major component in building horsepower and torque. Because the way the shape and size of the combustion chamber affects so much of an engine's operation, you have to choose the appropriate selection, not just the one with the best peak numbers.
What is special about GT40 heads?
GT40 cylinder heads were a more free-flowing high-performance cylinder head that outperformed the factory E7 heads that were found on most 5.0 Fox Body Mustangs.
How much HP do GT40 heads add?
Obviously, tuneups will vary. You just want to keep it out of detonation. While we've seen engine dyno tests performed with GT-40P heads replacing factory E7TE castings and resulting in a boost of more than 25 hp, we have reluctantly set our horsepower gain goal at 25 ponies, as well.
What does GT stand for in GT40?
Grand Touring
The high-performance Ford GT40 is the dream child of Ford Motors, conceived in America and birthed in England. The GT stands for Grand Touring, and the 40 refers to its overall height in inches. It was produced from 1964-1969, and has since become an American racing icon.
