If you're looking to upgrade your 406 small block Chevy engine, getting the right heads is crucial. The right heads will improve performance, increase horsepower and torque, and give your engine a better overall sound. However, choosing the right heads can be overwhelming, especially if you're not aware of the key points you should consider.
Here are five key points to keep in mind when looking for heads for your 406 SBC:
1. Type of Heads: There are different types of heads available, such as aluminum or iron, and choosing the right one depends on your needs, budget, and the kind of performance you're looking for.
2. Chamber Size: Chamber size is the space inside the cylinder head where the combustion process takes place. The size of the chamber will affect the compression ratio and the engine's overall performance.
3. Valve Size: The size of the valves and the valve seats play a crucial role in the engine's performance. Larger valves allow more air and fuel to flow into the cylinder, increasing horsepower, and torque.
4. Port Size: The size of the ports determines the amount of air and fuel that enters the engine, which affects the engine's performance. Larger ports allow more air and fuel to enter the engine, increasing horsepower and torque.
5. Brand/Manufacturer: Choosing a reliable and reputable brand/manufacturer is essential when selecting heads for your 406 SBC. It ensures quality and durability, and provides you with the necessary support and warranty.
In conclusion, when looking for heads for your 406 SBC, consider the type of heads, chamber size, valve size, port size, and brand/manufacturer. By keeping these key points in mind, you can select the right heads that will improve your engine's performance, sound, and longevity.
10 Best Heads For 406 Sbc
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1. Edelbrock 5073 Cylinder Head
The Edelbrock 5073 Cylinder Head is a high-quality product designed for those who want to enhance the performance of their vehicle. This complete pair for hydraulic flat tappet engines is made in the United States and comes with a part number of EDL-5073.
The package dimensions of this product are 24.5 L x 9.0 H x 12.0 W (inches) and it weighs approximately 59.8 pounds, making it a substantial addition to any engine. The cylinder head is vehicle-specific, meaning that it is designed to fit certain models and makes of cars. Therefore, it is essential to check the compatibility of the product with the vehicle before making a purchase.
The Edelbrock 5073 Cylinder Head is a vital component of an engine that helps to improve its performance. The cylinder head is responsible for sealing the combustion chamber and provides a surface for the valves and pistons to operate. It determines the efficiency of the engine and affects its power, fuel economy, and emissions.
This product is made from high-quality materials and is designed to withstand the rigors of high-performance driving. It is engineered to provide maximum airflow and improved combustion efficiency, resulting in increased horsepower and torque. The cylinder head has a unique design that enhances the flow of air and fuel mixture into the combustion chamber, allowing for better combustion and improved power output.
One of the most significant advantages of the Edelbrock 5073 Cylinder Head is that it comes complete with hydraulic flat tappets, making it an easy and convenient upgrade for those who want to boost the performance of their engine. The hydraulic lifters are designed to adjust the valve lash automatically, eliminating the need for periodic adjustments.
In conclusion, the Edelbrock 5073 Cylinder Head is an excellent investment for those who want to enhance the performance of their engine. It is designed to provide maximum airflow, improved combustion efficiency, and increased horsepower and torque. The product is made in the United States and comes complete with hydraulic flat tappets, making it an easy and convenient upgrade for vehicle owners. However, it is essential to check the compatibility of the product with the vehicle before making a purchase.
2. Speedmaster Pce281.2048 Ford Sb 289 302 351w 190cc 62cc Hydr-R Complete Aluminum
The Speedmaster PCE281.2048 is a complete aluminum cylinder head kit designed specifically for Small Block Ford 289/302/351W engines with hydraulic roller camshafts. This kit includes fully assembled cylinder heads featuring 190cc intake runners and 62cc combustion chambers, as well as high-quality valves and valve springs.
The Speedmaster PCE281.2048 cylinder heads are made from high-quality aluminum alloy, which offers superior strength, durability, and heat dissipation compared to traditional cast iron heads. This makes them ideal for high-performance applications where engine cooling is critical, such as racing or high-speed driving.
The 190cc intake runners are designed to optimize airflow into the engine, which can improve horsepower and torque output. The 62cc combustion chambers are designed to promote efficient combustion, which can improve fuel economy and reduce emissions.
The cylinder heads are fully assembled and ready to install out of the box, which can save time and money compared to purchasing and assembling individual components. The kit also includes high-quality valves and valve springs, which are designed to withstand the rigors of high-performance driving.
Overall, the Speedmaster PCE281.2048 cylinder head kit is a high-quality and reliable upgrade for Small Block Ford 289/302/351W engines. Its lightweight aluminum construction, optimized airflow, and efficient combustion make it an excellent choice for anyone looking to improve the performance and reliability of their engine.
3. Edelbrock 5023 Cylinder Head
The Edelbrock 5023 Cylinder Head is a high-performance component designed to improve the power and efficiency of your engine. This product comes as a complete pair, making it an easy drop-in replacement for your existing cylinder heads.
One of the key features of the Edelbrock 5023 Cylinder Head is its 60cc combustion chamber volume. This ensures that the fuel and air mixture is properly compressed for maximum combustion efficiency, resulting in increased power and torque output.
In addition, the Edelbrock 5023 Cylinder Head boasts a 170cc intake and 60cc exhaust runner volume, allowing for optimal airflow and improved engine breathing. This is essential for achieving maximum power and performance, as a restriction in airflow can limit the engine's ability to produce power efficiently.
The Edelbrock 5023 Cylinder Head also features 1.9-inch intake and 1.6-inch exhaust valve diameters, providing a larger opening for air and fuel to enter and exit the combustion chamber. This allows for more fuel and air to be burned and expelled, resulting in increased power and efficiency.
Furthermore, the Edelbrock 5023 Cylinder Head has a 0.625-inch deck thickness, ensuring that the cylinder head is strong and durable enough to withstand the rigors of high-performance driving. This thickness also helps to prevent warping or cracking, which can occur under high heat and pressure conditions.
Overall, the Edelbrock 5023 Cylinder Head is a high-quality product that can significantly improve the power and efficiency of your engine. With its advanced features and durable construction, this cylinder head is a great investment for anyone looking to upgrade their engine's performance.
4. Flo-Tek Heads 101-505 Engine Cylinder Head (Cylinder Head Sbc Angle Assembled)
The FLO-TEK Heads 101-505 Engine Cylinder Head is a high-quality product that is designed to enhance the performance of your Small Block Chevy (SBC) engine. This cylinder head is specifically engineered to fit SBC engines and comes fully assembled with a 64cc chamber, 2.02-inch intake valves, and 1.60-inch exhaust valves.
The cylinder head is made in China and weighs 22 pounds. It comes in a package that measures 19.75 inches in length, 5 inches in height, and 7.5 inches in width. The package is designed to protect the cylinder head during shipping and storage, ensuring that it arrives in excellent condition.
The FLO-TEK Heads 101-505 Engine Cylinder Head is a high-performance cylinder head that is designed to deliver maximum power and efficiency. It features a superior casting design that provides excellent airflow and combustion efficiency, resulting in increased horsepower and torque.
The cylinder head is made from high-quality materials and is designed to withstand high temperatures and pressures. It is also designed to be easy to install, with all the necessary components included in the package. The cylinder head is compatible with most SBC engines and can be used in a wide range of applications, including racing and street performance.
In conclusion, the FLO-TEK Heads 101-505 Engine Cylinder Head is a top-quality product that is designed to enhance the performance of your SBC engine. It is made from high-quality materials, is easy to install, and is designed to withstand high temperatures and pressures. If you are looking to boost the performance of your SBC engine, this cylinder head is definitely worth considering.
5. Speedmaster Pce281.1755 Fits Chevy Sbc 350 Vortec 180cc 64cc Straight Cast Iron Bare Cylinder Head
Speedmaster introduces the PCE281.1755, a high-performance cylinder head designed to fit Chevy SBC 350 Vortec engines with 180cc and 64cc straight cast iron bare cylinder heads. The product is available with straight or angled spark plugs and features standard valve sizes of 2.020 inches for intake and 1.600 inches for exhaust, both with an additional 0.100 inches in length. The aluminum heads are capable of accepting a 2.050-inch intake valve with minimal additional work.
Speedmaster is known for creating unique and distinctive DNA items that are inspired by the blend of old and new technology. The company's empowered workforce drives innovation not only in the products it sells but also in the way it goes about doing it. Speedmaster's commitment to quality is evident in its "Track Proven" products that have survived the longevity of road, race, and recreation. The PCE281.1755 is no exception, bringing customers closer to product perfection.
The PCE281.1755 is backed by a 12-month limited worldwide warranty, providing customers with peace of mind and assurance that they are purchasing a quality product. The cylinder head is designed with performance in mind, providing maximum airflow to increase power and torque. The straight cast iron bare cylinder head design is perfect for custom builds and provides flexibility for customers to add their personalized touch to their engine.
The PCE281.1755 is a must-have for any Chevy SBC 350 Vortec owner looking to increase their engine's performance. The cylinder head's design and construction ensure that it will withstand the rigors of road, race, and recreation, making it a reliable and durable option for any engine build. Speedmaster's commitment to innovation and quality is evident in the PCE281.1755, making it a top choice for engine builders and enthusiasts alike.
6. Edelbrock 60119 Amc Performer Rpm Cylinder Head – Assembly
The Edelbrock 60119 AMC Performer RPM Cylinder Head – Assembly is a high-performance component that is designed to deliver an exceptional level of power and performance to your engine. This complete single assembly is specifically designed for flat tappet engines and features a 54cc combustion chamber volume, 185cc intake runner volume, and 70cc exhaust runner volume.
The cylinder head is constructed with a 0.625-inch deck thickness, which provides superior strength and durability, and is designed to fit AMC engines. The 2.02-inch intake and 1.6-inch exhaust valve diameter means that the cylinder head is capable of delivering a high level of airflow, which results in improved engine performance.
The Edelbrock 60119 AMC Performer RPM Cylinder Head – Assembly is perfect for those looking to upgrade their engine's performance. The cylinder head is designed to deliver increased horsepower and torque, improved throttle response, and better overall engine performance.
The assembly is made from high-quality materials and is rigorously tested to ensure that it meets the highest standards of performance and durability. The cylinder head comes fully assembled, which means that installation is quick and easy.
In addition to its impressive performance capabilities, the Edelbrock 60119 AMC Performer RPM Cylinder Head – Assembly is also designed with aesthetics in mind. Its sleek and stylish design will give your engine a professional and polished look that will turn heads.
Overall, the Edelbrock 60119 AMC Performer RPM Cylinder Head – Assembly is an excellent choice for anyone looking to upgrade their engine's performance. With its high-quality construction, impressive performance capabilities, and stylish design, this cylinder head is sure to impress.
7. 2 X New Improved 6.0 Ford Powerstroke Diesel Loaded Cylinder Head Pair 03-07 No Core (18mm)
Introducing the 2 x NEW Improved 6.0 Ford Powerstroke Diesel LOADED Cylinder Head PAIR 03-07 No Core (18MM), the latest innovation in complete cylinder head pairs for Ford 6.0 Powerstroke engines. These redesigned heads come fully loaded with brand new valves, springs, retainers, and locks, eliminating the need for cores.
The improved design of these cylinder heads ensures that they function at their best, providing optimal performance for your engine. With no need for cores, you can simply install these heads and enjoy the benefits of their advanced design.
The 2 x NEW Improved 6.0 Ford Powerstroke Diesel LOADED Cylinder Head PAIR 03-07 No Core (18MM) is the perfect solution for those who want to improve the performance of their Ford 6.0 Powerstroke engine. With brand new components, these cylinder heads offer improved durability and longevity, ensuring that your engine runs smoothly for years to come.
Most orders for these cylinder heads are shipped the same day, ensuring that you can get your engine back up and running as quickly as possible. With their advanced design and high-quality components, these cylinder heads are the perfect choice for anyone looking to upgrade their Ford 6.0 Powerstroke engine.
In summary, the 2 x NEW Improved 6.0 Ford Powerstroke Diesel LOADED Cylinder Head PAIR 03-07 No Core (18MM) is a top-of-the-line product that offers improved performance and durability for your Ford 6.0 Powerstroke engine. With brand new valves, springs, retainers, and locks, you can be assured that your engine will run smoothly for years to come. Order now and experience the benefits of these advanced cylinder heads for yourself!
8. Speedmaster Pce281.2152 Assembled Cylinder Heads For Oldsmobile 400-455 Engines.
Speedmaster's PCE281.2152 cylinder heads have been designed to fit Oldsmobile 400, 425, and 455 engines. The 188cc intake runners and 77cc combustion chambers are ideal for high-performance applications.
The cylinder heads are pre-assembled for convenience and ease of installation. They are made with high-quality materials and precision engineering to ensure long-lasting durability and performance.
Speedmaster is known for creating unique and distinctive products that blend old and new technology. Its dedicated workforce is committed to driving innovation, not only in the products it sells but also in the way it does business.
The PCE281.2152 cylinder heads are "Track Proven," meaning that they have been tested and proven to survive the rigors of road, race, and recreation. They bring you closer to product perfection and ensure that you can rely on them for years to come.
Speedmaster stands behind its products and offers a 12-month limited worldwide warranty. This gives you peace of mind knowing that you are investing in a quality product that is backed by a reputable company.
Whether you are a professional racer or a do-it-yourself enthusiast, the PCE281.2152 cylinder heads are an excellent choice for your Oldsmobile engine. They offer superior performance and durability, making them a wise investment for anyone looking to upgrade their engine.
9. Arp 134-3601 1343601 High Performance Series Cylinder Head Hex Bolts
The ARP 134-3601 High Performance Series Cylinder Head Hex Bolts are designed to provide superior strength and durability for your Small Block Chevy engine. This cylinder head bolt kit is a must-have for those who demand the best in performance and reliability.
The ARP 134-3601 High Performance Series Cylinder Head Hex Bolts are made from high-quality materials, such as aerospace-grade 8740 chrome moly steel, which provides exceptional strength and resistance to wear and corrosion. Each bolt is precision-machined to ensure a perfect fit and maximum clamping force.
This cylinder head bolt kit is vehicle-specific, meaning it is designed to fit your Small Block Chevy engine perfectly. It is important to note that this cylinder head bolt kit is not a universal fit and should only be used on vehicles that are listed as compatible.
The ARP 134-3601 High Performance Series Cylinder Head Hex Bolts are designed to provide a secure and tight seal between the cylinder head and engine block. This is essential for maintaining the proper compression and preventing leaks that can lead to engine damage.
In addition to their superior strength and durability, the ARP 134-3601 High Performance Series Cylinder Head Hex Bolts are also easy to install. This kit comes with everything you need to replace your old, worn-out bolts, including detailed instructions and all necessary hardware.
Overall, the ARP 134-3601 High Performance Series Cylinder Head Hex Bolts are a must-have for any Small Block Chevy engine owner who demands the best in performance and reliability. With their superior strength, durability, and easy installation, these bolts are sure to provide years of trouble-free service. So, if you want to ensure the longevity and performance of your engine, be sure to invest in the ARP 134-3601 High Performance Series Cylinder Head Hex Bolts today!
Best Heads For 406 Sbc FAQs
Do I need to modify my engine block to use aftermarket heads on a 406 SBC?
It depends on the specific aftermarket heads you are using and the condition of your engine block. Some aftermarket heads may require modifications to the engine block, such as additional clearance for larger valves or different bolt patterns. However, many aftermarket heads are designed to fit onto a standard engine block without modification. It is recommended to consult with the manufacturer of the aftermarket heads and a professional engine builder to determine if any modifications are necessary for your specific setup. It is also important to ensure that your engine block is in good condition and can handle the increased power and stress from the aftermarket heads.
How much horsepower can I expect from 406 SBC with the right heads?
The amount of horsepower you can expect from a 406 SBC with the right heads can vary depending on several factors such as the type of heads you choose, the compression ratio, and the camshaft you use. However, with the right combination of components, you can expect to achieve anywhere from 450 to 600 horsepower.
One important factor to consider when building a high-performance engine is choosing the right cylinder heads. The heads you select should have a high flow rate and the proper port size to ensure maximum air and fuel flow. In addition, the compression ratio should be optimized for the type of fuel you plan to use and the camshaft should be matched to the heads and compression ratio for optimal performance.
Other factors that can affect the horsepower output include the type of intake manifold, carburetor or fuel injection system, and exhaust system. A well-tuned engine with all the right components can produce impressive horsepower numbers, allowing you to enjoy a thrilling driving experience.
What is the best brand of heads for a 406 SBC?
When it comes to choosing the best brand of heads for a 406 SBC, there are several reputable manufacturers to consider. Some of the top brands in the market include AFR (Airflow Research), Brodix, Dart, and World Products. Each brand offers a range of cylinder heads that are designed to improve airflow and performance of the engine.
AFR is known for its advanced technology and high-quality construction, which makes their heads a popular choice among racers and performance enthusiasts. Brodix is another well-respected brand that offers a wide range of cylinder heads for various applications, including street and racing engines.
Dart and World Products are also popular brands that offer high-quality cylinder heads for small block Chevy engines. Dart heads are known for their high performance and durability, while World Products offer a range of affordable options that are ideal for budget-conscious enthusiasts.
Ultimately, the best brand of heads for a 406 SBC will depend on your specific needs and budget. It is important to do thorough research and consult with experts to make an informed decision.
What is the recommended compression ratio for a 406 SBC with aftermarket heads?
As there are many variables that can affect the ideal compression ratio for a 406 SBC with aftermarket heads, it is difficult to give a specific recommendation without more information. Some factors that can impact the ideal compression ratio include the type of fuel being used, the camshaft profile, the size of the intake and exhaust ports, and the desired horsepower and torque output. Generally speaking, a compression ratio between 10:1 and 12:1 can work well for a 406 SBC with aftermarket heads, but it is important to consult with a professional engine builder or tuner to determine the best compression ratio for your specific setup. Additionally, it is important to ensure that the engine is properly tuned and that all components are matched and working together to achieve optimal performance and reliability.
What size valves should I use in my heads for a 406 SBC?
The valve size that should be used in the heads for a 406 SBC (Small Block Chevy) engine depends on several factors, including the engine's intended use and specific components. Generally, a recommended valve size for a 406 SBC is between 1.94 and 2.02 inches for the intake valves and 1.50 to 1.60 inches for the exhaust valves. These sizes provide a good balance between airflow and velocity, which can enhance engine performance. However, the valve size should be selected based on the camshaft's lift and duration, cylinder head design, piston clearance, and other factors. It's essential to consult with an experienced engine builder or machinist to determine the optimal valve size for your specific application. Ultimately, the choice of valve size will depend on the engine's intended use, budget, and performance goals.