Speedmaster PCE281.1090 LS1 LS2 LS6 Bare Cylinder Head 198cc 70cc CNC Aluminum

The Speedmaster PCE281.1090 is a bare cylinder head designed for Chevy GM LS-series engines including LS1, LS2, and LS6 platforms. Engineered with 198cc intake and 70cc exhaust port volumes, this CNC-machined aluminum head provides a precision foundation for high-performance engine builds and restorations. The full CNC aluminum construction ensures consistent port quality and tight tolerances for optimal flow characteristics.

This bare head is ideal for engine builders and enthusiasts undertaking complete LS-engine assemblies, particularly those targeting increased horsepower and improved breathing efficiency. The aluminum construction delivers excellent thermal properties while maintaining durability under demanding conditions. The precision CNC machining allows for reliable fitment and compatibility across the supported LS engine family, making it a practical choice for both street performance applications and serious engine development projects.

Key Features & Benefits

• CNC Aluminum Construction: Full CNC machining ensures precision port geometry and tight tolerances for consistent flow.
• 198cc Intake / 70cc Exhaust: Optimized port volumes designed for LS1, LS2, and LS6 engine platforms.
• Bare Head Design: Unfitted cylinder head allows custom configuration and valve train assembly per builder requirements.
• LS Engine Compatibility: Direct fit for Chevy GM LS1, LS2, and LS6 engine blocks.

Specifications

Ideal Applications

• LS-engine rebuilds and restorations
• High-performance street and track engine builds
• Engine swaps requiring LS platform compatibility
• Performance cylinder head upgrades for Chevy LS-series platforms