The Chevrolet 350, a classic small-block engine, thrives on proper airflow and reliable hardware. This guide highlights leading cylinder heads and related parts that suit Chevy 350 builds, balancing performance, durability, and compatibility. Each product below is chosen for common SBC 350 applications, including era-specific models and square-port designs. Explore options for bare aluminum heads, bolt kits, and related components to optimize airflow, compression, and overall power output.
| Product | Brand | Key Benefit |
|---|---|---|
| DNA Motoring CYLH-SBC-350 | DNA MOTORING | Bare aluminum head for SBC 350/327/302 with 200cc intake runner |
| Auto Dynasty Aluminum Bare Cylinder Head | Auto Dynasty | 200cc intake, 68cc chamber, compatible with 302/327/350 SBC |
| ARP 1343601 High Performance Head Bolts | ARP | High‑performance head bolt kit for small block Chevy |
| Cylinder Head Bolt Set Black 134-3601 | BeoneYuu | Durable chromoly bolts with black oxide finish |
| Cylinder Head Bolt Set with Washer 134-3601 | Fekuar | Chromoly bolts with washers, compatible with SBC 283–400 |
DNA Motoring CYLH-SBC-350 Aluminum Bare Cylinder Head
The DNA Motoring CYLH-SBC-350 is an aluminum bare cylinder head designed for small-block Chevy engines including the 302, 327, 350, 383, and 400. This head features a square intake and exhaust port arrangement with a 2.020″ intake valve and 1.600″ exhaust valve. The 200cc intake runner and 68cc combustion chamber are aimed at improving airflow while maintaining stock compression for early 1970s models. This option is suitable for enthusiasts seeking improved breathing on classic SBC builds.
Auto Dynasty Aluminum Bare Cylinder Head
The Auto Dynasty bare cylinder head is designed for SBC engines 302/327/350/383/400 up to 1986 and features a 200cc intake runner with a 68cc combustion chamber. With square intake and exhaust ports, it emphasizes efficient airflow, helping to retain stock compression for older models while enabling enhanced performance. It’s a practical choice for a budget-friendly upgrade on classic Chevy small-block builds.
ARP 1343601 High Performance Head Bolts
ARP’s 1343601 high-performance cylinder head bolt kit is designed for small-block Chevy applications, providing strong clamping and reliability. The kit’s components include bolts sized for classic SBC configurations, with a focus on maintaining head seal integrity under higher boost or compression scenarios. This option is well-suited for builds that demand durable fasteners and consistent torquing performance.
Cylinder Head Bolt Set Black 134-3601 by BeoneYuu
This BeoneYuu cylinder head bolt set offers chromoly fasteners with a black oxide finish and includes washers. It’s compatible with a broad range of SBC engines, including 283, 302, 305, 307, 327, 350, and 383/400 variants. The set emphasizes durability and corrosion resistance, making it a solid upgrade for head retention on older or performance-oriented builds.
Cylinder Head Bolt Set With Washer 134-3601 Black
The Fekuar head bolt set includes chromoly bolts with washers and a black exterior finish. It’s designed to fit Chevy SBC engines from 262 through 400 and offers a robust fastening solution for head gaskets and performance builds. The set is intended for reliability across a range of SBC configurations, ensuring strong clamping across multiple head bolt positions.
Buying Guide: Key Purchase Considerations
When selecting heads or related hardware for a Chevy 350, consider the following factors to make an informed choice:
- Intake and exhaust port geometry: Square ports are common for older SBCs, but seekers of higher airflow may prefer cathedral or raised-port designs depending on the build era and manifold compatibility.
- Displacement and compression goals: 68cc chambers tend to keep stock compression on older engines. If you aim for higher compression, verify piston clearance and head gasket compatibility.
- Valve size and runner volume: A 200cc intake runner supports increased airflow. Ensure compatibility with your cam, intake, and exhaust setup for balanced performance gains.
- Material and finish: Aluminum heads offer weight savings and better heat dissipation but require proper maintenance. Bolt material (chromoly) and finish (black oxide) affect durability and corrosion resistance.
- Compatibility with manifolds: Check whether your current intake, exhaust manifolds, and ignition components align with the chosen heads and bolts, especially for older blocks.
- Torque specs and fastener quality: High-performance bolts require correct torque sequences and lubrication. Use manufacturer-recommended procedures to prevent head gasket failures.
- Budget vs. performance: Bare aluminum heads typically require additional upgrades (valves, springs). For a budget-friendly approach, pairing a well‑made bolt set with a compatible bare head can yield solid results.
For a Chevy 350 build, a combination of a bare aluminum head from DNA Motoring or Auto Dynasty with a high-quality bolt set from ARP or a compatible brand can deliver noticeable gains in airflow and seat pressure. Consider your car’s intended use—daily driver, street/strip, or full-on race—to balance performance with reliability. Always verify clearance, gasket type, and valve geometry before final assembly to ensure optimal results.