Speedmaster PCE281.1085 LS1 LS2 LS6 Cylinder Head 198cc 64cc Full CNC Aluminum

The Speedmaster PCE281.1085 is a bare aluminum cylinder head engineered for Chevy GM LS-series engines, specifically compatible with LS1, LS2, and LS6 platforms. Featuring a 198cc intake port and 64cc combustion chamber, this head delivers precision flow characteristics ideal for high-performance engine builds. The full CNC-machined construction from aluminum ensures dimensional accuracy and repeatability across critical porting and sealing surfaces.

This bare cylinder head is a core component for engine rebuilds, performance upgrades, and custom LS engine assembly projects. The machined aluminum construction provides both durability and weight savings compared to cast iron alternatives, making it popular among enthusiasts and builders targeting increased horsepower and efficiency. Installation requires proper valve train setup, gasket selection, and torque specifications per your specific engine application and builder recommendations.

Key Features & Benefits

• LS-Series Compatibility: Designed for Chevy LS1, LS2, and LS6 engines with proven fitment.
• CNC-Machined Aluminum: Full computer numerical control machining ensures precise port and chamber geometry.
• 198cc Intake Port: Large intake port volume supports high-flow breathing and performance tuning.
• 64cc Combustion Chamber: Compact chamber volume optimized for compression and burn efficiency.
• Bare Head Design: Stripped of valve train and accessories, ready for custom assembly or rebuilding.

Specifications

Ideal Applications

• LS engine rebuilds and long-block assemblies
• High-performance and racing engine builds
• Custom engine swaps and conversions
• Horsepower and flow optimization projects