Best Heads for a 350 SBC to Boost Performance and Reliability
Choosing the best heads for a 350 Small Block Chevy (SBC) is crucial for optimizing engine power and efficiency. This guide covers top cylinder heads that fit the SBC 350 engine, suitable for a wide range of Chevy models including Camaros, Chevelles, and Monte Carlos. The selected products focus on quality materials, efficient airflow, and durability, helping you decide based on features like combustion chamber volume, valve size, and material composition.
| Product Name | Key Features | Compatibility |
|---|---|---|
| SBC 350 Cylinder Head Bare Straight Plug Aluminum | Aluminum, 200cc intake, 64cc chamber, bronze valve guides | Chevy SBC 302, 327, 350, 383, 400 (up to 1986) |
| DNA Motoring SBC 350 Aluminum Bare Cylinder Head | 200cc intake, 68cc chamber, straight spark plug | SBC 302/327/350/383/400 |
| Speedmaster PCE281.2010 Assembled Cylinder Heads | 205cc intake, 64cc chamber, hydraulic flat tappet | Chevy SBC 350 |
| Speedmaster PCE435.1005 Top End Engine Combo Kit | Solid flat tappet heads, track proven design | Chevy SBC 350 |
| Pateyney Small Block Chevy Aluminum Bare Cylinder Head | 205cc intake, 64cc chamber, angle valve job | Chevy SBC 350/400 |
SBC 350 Cylinder Head Bare Straight Plug Aluminum
This cylinder head features high-grade aluminum construction with bronze valve guides and hardened seats. Designed with a 200cc intake port and a 64cc combustion chamber, it increases air flow for improved engine efficiency. The head fits Chevy Small Block engines including the 302, 327, 350, 383, and 400 up to 1986 models. The 64cc chambers provide better performance while retaining stock compression for 1970 and earlier engines, making it ideal for those upgrading classic muscle cars such as the Camaro Z28, Chevelle, and Monte Carlo.
DNA Motoring CYLH-SBC-350 Aluminum Bare Cylinder Head
Compatible with SBC engines ranging from 302 to 400, this bare aluminum head offers a 200cc intake runner and a 68cc combustion chamber. The design includes square intake and exhaust ports and a straight spark plug angle, which supports efficient combustion and easy maintenance. The larger 68cc combustion chambers help enhance performance while maintaining the factory compression ratio for early 1970s models. Its specs make it a versatile upgrade option for restorations and performance builds alike.
Speedmaster PCE281.2010 Assembled Cylinder Heads
The Speedmaster PCE281.2010 offers assembled 281 cylinder heads with a 205cc intake port and 64cc combustion chamber. Featuring a hydraulic flat tappet design, these heads combine modern craftsmanship with proven technology to maximize performance for the Chevy 350. The product highlights include track-proven durability and compatibility for street, race, and recreational use, ensuring reliability under demanding conditions.
Speedmaster PCE435.1005 Straight Plug Solid FT Cylinder Head Kit
This combo kit features solid flat tappet cylinder heads designed for the Chevy SBC 350. Speedmaster emphasizes a blend of old and new technologies in their products, delivering innovative solutions with durability and performance. The kit is track-proven for longevity across various usage conditions and is suitable for those looking to upgrade their top-end engine components with quality assurance.
Pateyney Small Block Chevy 350 400 Aluminum Bare Cylinder Head
This aluminum bare cylinder head is engineered with 205cc intake ports and 64cc combustion chambers, featuring an angle valve job for optimized airflow and combustion. Its valve sizes measure 2.02” intake and 1.60” exhaust. Compatible with 350 and 400 SBC engines, it provides a solid upgrade for those seeking to enhance the head flow dynamics without altering the engine’s compression dramatically.
Buying Guide: How to Choose the Best Heads for Your 350 SBC Engine
When selecting cylinder heads for your 350 SBC engine, consider the following:
- Material: Aluminum heads offer lighter weight and better heat dissipation compared to cast iron, improving performance and fuel efficiency.
- Combustion Chamber Size: Smaller chambers (around 64cc) typically increase compression ratio, enhancing power, whereas slightly larger chambers lower compression for higher RPM engines.
- Intake Port Volume: Intake runner size (measured in cc) affects airflow capacity; larger ports allow more air for high-performance builds but may reduce low-end torque.
- Valve Size and Configuration: Larger valves improve airflow; valve angles (straight or angle plug) impact combustion efficiency.
- Compatibility: Ensure the heads fit your engine model year and configuration, including ignition system and intake manifold match.
- Assembly State: Decide if you want bare heads for customization or pre-assembled heads for immediate installation.
- Valve Guides and Seats: Quality materials like bronze valve guides and hardened seats improve durability under high stress and heat.
- Intended Use: Track-proven or race-oriented heads suit high-performance builds, while street heads balance performance and longevity.
Balancing these factors will help you select the best cylinder heads that refine your engine’s airflow, power, and reliability tailored to your driving requirements.