If you’re upgrading a Chevy small-block engine, choosing the right SBC 350 aluminum head can unlock meaningful gains in airflow, power, and reliability. This guide highlights five solid aluminum head options that pair well with 350 small-block builds, explains who each is best for, and points out any limitations to consider. Whether you’re building a street screamer, a weekend racer, or a reliability-focused rebuild, these heads are designed to improve airflow and combustion efficiency on SBC 350 platforms.
| Product | Brand | Intake Runner | Chamber | Best For |
|---|---|---|---|---|
| 2x Complete Cylinder Head Assy Replacement | Woosphy | 190 cc | — | Budget street builds |
| DNA MOTORING Aluminum Bare Head | DNA MOTORING | 200 cc | 68 cc | Balanced flow with modern design |
| 2x Cylinder Head Assembly Replacement | Generic | 190 cc | 64 cc | Classic performance upgrades |
| Cylinder head for Small Block Chevy SBC Aluminum Bare | Pateyney | 205 cc | 64 cc | High-flow potential |
| VEVOR Engine Cylinder Head Assembly | VEVOR | Unknown (listed as 200+c) | Undisclosed | Comprehensive replacement |
2x Complete Cylinder Head Assy Replacement for Chevy SBC 350/327/383
This aluminum head assembly is designed for Chevy small-block engines including the 350, 327, and 383. It features a 190 cc intake runner and an intake/exhaust arrangement suitable for straightforward bolt-on installation. Best for budget-oriented street builds that want to improve airflow without a high-end porting process.
Who it’s best for: Builders seeking a cost-conscious upgrade or replacement that yields improved airflow over stock, with straightforward compatibility for common SBC 350 applications.
Limitations: Specific exhaust port details and flow numbers are not listed, so highly tuned setups may require porting or additional calibration for peak power.
DNA MOTORING Aluminum Bare Cylinder Head for Chevy SBC
This bare head is built for SBC 302/327/350/383/400 blocks with a 68 cc combustion chamber and 200 cc intake volume. It uses high-grade aluminum with bronze valve guides and hardened seats, featuring a 23-degree valve angle and square ports. Lighter than iron heads, this option emphasizes modern airflow while staying within a relatively approachable weight.
Who it’s best for: Builders who want a modular, lighter head with modern valve and seat construction, suitable for mixed-performance street and light-performance builds.
Limitations: It is a bare head—valves, springs, and other components are not included, so you’ll need to source compatible hardware separately.
2x Cylinder Head Assembly Replacement for Chevy SBC 350/327/383
This assembly targets Chevy small-block applications with a 64 cc combustion chamber and 190 cc intake volume, designed as a practical upgrade over stock heads for Camaro and Corvette platforms. It provides a straightforward replacement that fits the classic SBC 350/327/383 interchangeability.
Who it’s best for: Builders seeking a direct swap option that maintains classic SBC geometry with improved airflow characteristics.
Limitations: Data on port shapes and swirl are not specified; performance gains may depend on accompanying cam and intake choices.
Cylinder head for Small Block Chevy SBC Aluminum Bare
With a 64 cc chamber and a 205 cc intake, this bare head emphasizes higher flow potential. It uses a two-angle valve job approach to optimize air and exhaust flow, which can benefit mid-range Power and top-end response in a balanced SBC 350 build.
Who it’s best for: Builders aiming for a higher-velocity intake and improved compression characteristics within a moderate street-performance setup.
Limitations: As a bare head, it requires valve train components and can demand precise assembly for reliable sealing and port alignment.
VEVOR Engine Cylinder Head Assembly
This aluminum cylinder head assembly is designed as a complete replacement for small-block Chevrolet engines, including SBC 327/350/383 variants and Corvette/Camaro/Z06 platforms. It emphasizes precise CNC-machined combustion chambers and passages, aiming for smoother airflow and reliable sealing. It’s positioned as a long-service-life upgrade with robust aluminum construction and matched components.
Who it’s best for: Builders seeking a full head replacement that aims to restore reliability and smooth engine operation across several SBC platforms.
Limitations: Exact valve train compatibility and port configuration are not exhaustively detailed; confirm fit to your specific block and manifold before purchase.
Buying Guide: Sizing Up SBC 350 Aluminum Heads
- Flow vs. chamber size: Larger intake runners (e.g., 205–210 cc) can improve top-end power but may reduce low-rpm torque. Match the chamber size (64–68 cc) to your compression target and cam profile.
- Bare vs. assembled heads: Bare heads offer customization but require more parts and proper tuning. Assembled heads save time but ensure the included components fit your build.
- Material and weight: Aluminum heads reduce weight and improve heat dissipation, benefiting performance and throttle response in street or strip use.
- Port design and angle: 23-degree or similar valve angles and square ports typically support broad RPM ranges. Porting can further improve flow but adds cost and complexity.
- Compatibility: Verify that the head matches your SBC’s deck height, valve spacing, and bolt pattern. Some heads fit standard decks, others require specific manifolds or valve covers.
- Intended use: For daily driving, prioritize reliability and ease of installation. For performance-focused builds, consider heads designed for higher airflow and larger intake runners.
Frequently Asked Questions
- What is the typical benefit of upgrading to aluminum SBC heads? Aluminum heads are lighter and dissipate heat more efficiently, which can improve throttle response and potential power when paired with a suitable cam and intake.
- Do I need new valves or springs with these heads? It depends on whether you buy bare or assembled heads. Bare heads require compatible valves and springs; assembled heads include these parts but confirm the specifics.
- Will these heads fit all SBC 350 blocks? Most listed heads target standard SBC 350/327/383 patterns, but always verify deck height, valve spacing, and bolt pattern for your exact block and manifold setup.
- Is porting required to achieve noticeable gains? For many mild builds, out-of-the-box performance is reasonable. For higher power goals, porting and matching intake manifolds can yield additional gains.
- Which head is best for a street-only build? A head with balanced 200 cc intake and a 64–68 cc chamber, paired with a reliable valve train, typically provides better mid-range driveability and daily usability.
- Are these heads compatible with Vortec manifolds? Some listings note incompatibilities with certain Vortec-style intakes. Check your specific manifold and cylinder head combination before purchasing.