Speedmaster PCE281.1785 LS1 LS2 LS6 225cc 68cc Full CNC Aluminum Bare Cylinder Head

The Speedmaster PCE281.1785 is a full CNC-machined aluminum bare cylinder head engineered for Chevy and GM LS1, LS2, and LS6 engines. This 225cc intake and 68cc combustion chamber head delivers precision-ported construction, allowing builders and performance enthusiasts to maximize airflow and boost engine efficiency on their LS-platform builds.

Crafted from high-quality aluminum and fully machined via CNC technology, this bare cylinder head is ready for custom assembly and offers the flexibility needed for custom engine builds, race applications, and street performance projects. Whether you're rebuilding an LS engine from the ground up or upgrading an existing setup, the PCE281.1785 provides the precision foundation required for reliable, high-performance results.

Key Features & Benefits

• Full CNC Machining: Precision computer numerical control machining ensures consistent port geometry and combustion chamber sizing for maximum airflow and performance.
• LS-Platform Compatibility: Designed to fit Chevy and GM LS1, LS2, and LS6 engines, making it a drop-in option for popular street and race builds.
• 225cc Intake Ports: Large intake port volume promotes efficient air entry and supports high-RPM breathing on LS-platform powerplants.
• 68cc Combustion Chambers: Optimized chamber size balances compression and flow characteristics for reliable engine operation.
• Bare Aluminum Construction: High-quality aluminum casting provides lightweight, durable construction ready for custom valve train assembly and tuning.

Specifications

Ideal Applications

• LS engine rebuilds and custom builds
• High-performance street car upgrades
• Racing engine assembly and tuning
• LS1 LS2 LS6 engine conversions and swaps