Speedmaster PCE281.1157 Chevy SBC 350 190cc Bare Aluminum Cylinder Head 68.5cc Chamber

The Speedmaster PCE281.1157 is a bare aluminum cylinder head engineered for small-block Chevy 350 engines. Featuring 190cc intake ports and a 68.5cc combustion chamber with angle CNC machining, this head is designed for builders seeking a precision-cast component for performance or restoration engine builds. The aluminum construction and CNC-ported design provide modern manufacturing precision while maintaining compatibility with standard SBC applications.

As a bare casting, this cylinder head arrives ready for final porting, valve seat work, and installation preparation. The 190cc port size and chamber volume specifications make it suitable for medium-displacement carbureted or fuel-injected builds. Whether you're assembling a street engine, weekend cruiser, or custom project, this Speedmaster head delivers the foundational component needed for complete engine assembly and tuning.

Key Features & Benefits

• 190cc Intake Ports: 190cc port sizing optimized for mid-range flow and compatibility with standard SBC applications.
• 68.5cc Combustion Chamber: Precisely machined chamber volume for controlled compression ratios and combustion efficiency.
• CNC Angle Machined: Computer numeric control angle porting ensures consistent port geometry and repeatability across the casting.
• Bare Aluminum Construction: Lightweight aluminum casting ready for final machining, porting, and valve work before installation.
• Small-Block Chevy 350 Fit: Engineered for direct fitment on standard SBC 350 engine blocks without modification.

Specifications

Ideal Applications

• Street performance engine builds on small-block Chevy platforms
• Custom carburetor or fuel-injection engine projects
• Engine rebuilds and restoration work
• Racing or competition engine assembly