Find the right cylinder head replacement for your Chevy small block 350 today. This guide highlights five top options, explaining who each product is best for, and why it’s a strong choice when upgrading airflow, combustion, and overall reliability. Ideal buyers include weekend hobbyists replacing worn heads, enthusiasts seeking better airflow, and builders aiming for a balance of performance and bolt-on simplicity.
| Product | Brand | Key Benefit | Best For |
|---|---|---|---|
| Speedmaster Assembled Cylinder Heads | Speedmaster | 205cc intake, 64cc chambers, ready-to-install | Balanced power and ease of install |
| DNA MOTORING Aluminum Bare Heads | DNA MOTORING | High-flow aluminum, 200cc intake | Lightweight, strong airflow for mid-range |
| VEVOR Aluminum Cylinder Head Assembly | VEVOR | Precision CNC, durable aluminum, sealed design | Reliable, factory-fresh feel |
| BluePrint Engines SBC Aluminum Heads | BluePrint Engines | Premium aluminum with 64cc chamber, strong valves | Performance-focused build |
| Auto Dynasty Aluminum Heads (Pack of 2) | Auto Dynasty | 200cc intake, 68cc chamber, 2-pack value | Upgrade for multiple heads or budget builds |
Speedmaster Assembled Cylinder Heads
Features include assembled and ready-to-run components, with a 205cc intake runner and 64cc combustion chambers designed for Small Block Chevy 265/283/305/307/327/350/383/400 engines. The kit includes springs, retainers, locks, and valves installed for straightforward bolt-on installation. Best for builders who want a ready-to-install option that still delivers noticeable airflow improvements. Caution: verify pushrod length and intake port match with your manifold before installation.
DNA MOTORING Aluminum Heads
Best for: builders seeking a lighter aluminum head with high intake flow suitable for small-block Chevy 302/327/350/383/400 builds. Features include 200cc intake volume, 68cc combustion chamber, and 2.020″ intake / 1.600″ exhaust valve diameters, with 23-degree valve angles and 3-angle seats. This head supports modern airflow while staying compatible with a range of small-block configurations. Limitation: not all manifolds match square ports without modifications, so check port compatibility before purchase.
VEVOR Engine Cylinder Head Assembly
Best for: small-block Chevy engines requiring a reliable, CNC-machined head with smooth airflow. It fits SBC 327/350/383 and Corvette, Camaro, Z06 models, offering precise casting, strong sealing, and durable aluminum with manganese bronze valve guides. Choose this if you want consistent performance and a seal-friendly design. Caution: ensure correct valve guide and seat fit for your exact valve train to avoid clearance issues.
BluePrint Engines SBC Aluminum Heads
Best for: performance-focused builds using a blueprinted small-block with 64cc chamber, 2.02″ intake and 1.60″ exhaust valves, and 195cc intake runners. The kit typically pairs with a Holley 670 CFM carburetor and dual-plane intake to maximize power. Limitation: this option is part of a broader engine package with multiple components; verify compatibility with your existing rotating assembly and manifolds before purchasing.
Auto Dynasty Aluminum Heads (Pack of 2)
Best for: owners upgrading multiple heads or budgeting a two-head replacement without sacrificing airflow. Features include 200cc intake runners and a 68cc chamber. The two-pack offers value for budget builds or when replacing both heads at once. Limitation: check overall valve clearance and port alignment with your existing block to avoid assembly fit issues.
Buying Guide
What should you consider when choosing 350 small block heads?
- Airflow and combustion geometry: Higher intake runner volume (e.g., 200–205cc) can improve mid-range and top-end power, but requires compatible valve train and manifolds.
- Chamber size: 64cc chambers increase compression, which affects detonation resistance and fuel requirements; match compression with your cam and compression ratio targets.
- Material: Aluminum heads are lighter and dissipate heat faster, aiding performance, but may require careful mounting and sealing to prevent warping or leaks.
- Port and valve compatibility: Ensure intake and exhaust ports match your manifold and exhaust system; some heads use different port shapes or angles that affect fitment.
- Assembly readiness: Some heads come assembled with springs, seals, and valves; others are bare and require purchasing additional components.
- Intended use: Street, strip, or show builds may prioritize different characteristics such as urban drivability, peak horsepower, or curb appeal.
Frequently Asked Questions
- What is the main difference between 64cc and 68cc combustion chambers?
Answer: Chamber size affects compression; smaller chambers raise compression for more power, while larger chambers lower compression and improve detonation resistance. - Do aluminum heads require different hardware than cast iron heads?
Answer: Generally yes; aluminum heads may need different gaskets, hardware, and torque specs due to thermal expansion differences. - Are bare or assembled heads better for beginners?
Answer: Assembled heads simplify installation, whereas bare heads allow customization but require more parts and setup steps. - Can these heads fit stock small-block blocks without modification?
Answer: Most listed heads are designed for direct bolt-on use with standard-deck blocks; always verify pushrod length and manifold compatibility. - Which head is best for a street-oriented build?
Answer: Heads with balanced airflow, 64cc chambers, and ready-to-run assemblies are typically favorable for street engines seeking reliability and noticeable performance gains.