High Performance Bare Aluminum Cylinder Head for Chevy BBC 454 | 330cc Intake, 122cc Chamber, Rectangle Port（PCH-BBC454））

Chevy BBC 454 Big Block Bare Aluminum Cylinder Head | 330cc Intake, 122cc Chamber, Rectangle Port

Unleash the full potential of your Big Block Chevy with this high-performance bare aluminum cylinder head, precision-engineered for maximum airflow and power. Designed for 454ci and other GM BBC platforms, this head features a massive 330cc intake runner and 122cc combustion chamber, making it ideal for street/strip or high-performance builds.

Whether you're upgrading for better throttle response or building a big block from the ground up, this head delivers solid performance with room for customization.

✅ Key Features:

• Fits Chevy Big Block 454 and similar V8 engines
• 320cc Intake Runners – High-volume for serious airflow
• 115cc Combustion Chambers – Ideal for performance compression ratios
• Rectangular Intake & Exhaust Ports – Standard location
• Bronze Valve Guides & Ductile Iron Valve Seats
• 3-Angle Valve Seats for improved sealing and flow
• Perimeter Bolt Valve Cover Mounting
• Accessory Bolt Holes Pre-Drilled

📐 Technical Specifications:

📦 What’s Included:

• 1 × Bare Aluminum Cylinder Head (BBC 454 Style)
• No valves, springs, or hardware included

🚗 Fitment:

• Chevy Big Block V8 engines – 454, 468, 496
• Performance street cars, strip builds, hot rods, and more

⚠️ Notes:

• Professional installation is recommended
• Steam holes not drilled – may be required for certain builds
• Sold individually – order 2 for complete engine set