Upgrading your 350 Small Block Chevy (SBC) engine with quality cylinder heads can significantly improve performance, efficiency, and longevity. Below is a summary table of the top-rated cylinder heads and related components compatible with 350 SBC engines, sourced from Amazon products to help you make an informed choice.
| Product Name | Brand | Key Feature |
|---|---|---|
| DNA Motoring CYLH-SBC-350 Aluminum Bare Cylinder Head | DNA MOTORING | 68cc combustion chamber, 200cc intake ports, fits multiple SBC sizes |
| Speedmaster PCE435.1005 SBC Straight Plug Solid FT Cylinder Head Combo | Speedmaster | Track proven design blending old and new technology |
| Cylinder Head Stud Kit Replacement for Chevy Small Block SBC | BLACKHORSE-RACING | High strength, OEM part replacement for SBC |
| 5.7 Cylinder Head Gasket for Gen 1 & Gen 2 SBC Engines | Gledewen | Precision embossed sealing beads, resistant to heat and pressure |
| Tyrigion 260-1045 Full Engine Gasket Set for SBC 283-350 V8 | Tyrigion | Complete engine gasket set compatible with multiple SBC variants |
DNA Motoring Aluminum Bare Cylinder Head for SBC 350
The DNA Motoring CYLH-SBC-350 bare aluminum cylinder head is engineered to be compatible with a range of Small Block Chevy engines from 302 to 400 cubic inches. Featuring a 200cc intake port volume and a 68cc combustion chamber, this head provides improved performance while retaining the stock compression levels especially on vintage 1970 and earlier models.
The intake valve diameter measures 2.020 inches, and the exhaust valve diameter is 1.600 inches, both designed in a square port style to optimize flow dynamics. The spark plug angle is straight, ensuring a reliable fit for a variety of ignition systems. This head is versatile and built to enhance the power potential of SBC engines without extensive modifications.
Speedmaster SBC Straight Plug Solid FT Cylinder Head Combo Kit
Speedmaster’s PCE435.1005 cylinder head combo kit for the Chevy SBC 350 is built by merging classic design with modern manufacturing techniques. The combo is track-proven, designed to withstand the demands of road and racing conditions.
This cylinder head features robust construction and delivers longevity for various driving purposes including recreational and competitive scenarios. Its distinctive build highlights Speedmaster’s dedication to blending innovation with durability, providing SBC enthusiasts with a reliable upgrade component that supports enhanced engine performance.
BLACKHORSE-RACING Cylinder Head Stud Kit for Chevy SBC
This BLACKHORSE-RACING stud kit is a direct replacement for Chevy Small Block SBC engines ranging from 265 to 400 cubic inches. The kit includes hardened studs manufactured under strict quality standards, providing great strength and durability.
Designed for firm fastening and simple installation, these studs help maintain uniform clamping force to reduce the risk of head gasket failure and leaks. The kit ensures compatibility and reliable performance, making it an ideal supplemental upgrade when replacing or rebuilding your SBC cylinder heads.
Gledewen 5.7 Cylinder Head Gasket for Gen 1 & Gen 2 SBC Engines
The Gledewen 5.7 cylinder head gasket is designed to fit Gen 1 and Gen 2 Small Block Chevy engines including the 350 SBC. This gasket features precision embossed sealing beads that fit tightly against the cylinder head and engine block surface, effectively eliminating leakage routes.
Constructed from high-quality graphite material, it offers resistance to high temperatures, high pressure, and corrosion. It meets original equipment standards and facilitates an easy installation process, making it a reliable sealing solution for SBC rebuilds or upgrades.
Tyrigion Full Engine Gasket Set for SBC 283-350 V8 Engines
Tyrigion’s full engine gasket set is compatible with an extensive range of Small Block Chevy engines from 283 to 350 cubic inches and beyond, covering model years from 1955 to 1980. The set is composed of high hardness materials designed to resist deformation and deliver a long service life.
Installation is facilitated by its thoughtful design and well-placed mounting holes. This kit serves as a comprehensive solution for SBC rebuilds, ensuring that multiple sealing surfaces in the engine are adequately covered with OEM-standard gaskets.
Buying Guide for 350 SBC Cylinder Heads
Choosing the best cylinder heads for your 350 SBC engine involves several critical factors that impact performance and longevity. Here are key considerations to guide your purchase:
Compatibility and Fitment
Ensure the cylinder head is specifically designed for SBC engines and matches your engine’s cubic inch displacement. Some heads are made for early generation SBCs while others suit newer models. Checking intake and exhaust port dimensions and combustion chamber volumes is essential for matching the heads to your performance goals.
Material and Construction
Aluminum heads tend to be lighter and provide better heat dissipation versus cast iron heads, possibly enhancing performance. Consider heads manufactured from high-quality materials with robust construction, as this impacts durability, especially for high-performance or racing applications.
Port Size and Design
The size and shape of intake and exhaust ports affect airflow and engine breathing. Larger ports typically benefit higher RPM power but may reduce low-end torque. Square ports like those on the DNA Motoring head offer a balanced airflow suitable for street and mild performance builds.
Valve Size and Configuration
Bigger valves provide more airflow but need to be balanced with the engine’s camshaft and fuel delivery to avoid performance losses. Typical intake valve sizes around 2.020 inches and exhaust around 1.600 inches suit most SBC 350 upgrades.
Combustion Chamber Volume
The chamber size influences compression ratio and power output. Heads with smaller combustion chambers increase compression, potentially adding power but requiring higher octane fuel. Heads with 68cc chambers, for example, maintain stock compression suited for various uses.
Additional Hardware and Gasket Requirements
Upgrading cylinder heads often requires compatible head gaskets and stud kits to ensure proper sealing and clamping force. Investing in a quality gasket and stud kit like those offered by Gledewen and BLACKHORSE-RACING helps prevent leaks and enhances engine reliability.
Application and Performance Goals
Decide whether the engine build is for street use, towing, or racing. Some heads are optimized for high-rpm performance while others focus on street drivability and durability. Track-proven products like Speedmaster bring a blend of safety and speed for enthusiasts balancing those needs.
Ease of Installation and Maintenance
Heads designed for straightforward bolt-on installation reduce labor time and costs. Consider the availability of replacement parts and overall maintenance practices for longevity, particularly if the engine will see frequent use.
By addressing these factors carefully, you can select the cylinder heads and complementary components that best meet your SBC 350 engine’s specific needs and your personal performance aspirations.