Optimize Street Performance: AFR 265cc CNC Magnum Street Big Block Chevy Heads

Transform your Big Block Chevy into a street-dominating machine with the Air Flow Research (AFR) 265cc CNC Magnum Street aluminum cylinder heads. These meticulously assembled heads are designed for enthusiasts who demand superior street performance without sacrificing drivability. Featuring advanced CNC porting, the 265cc intake runners ensure exceptional airflow and velocity, perfect for a strong, responsive street engine.

Key Features for Street-Focused Power

• Intake Runner Volume: 265 cc CNC ported for optimized street airflow
• Combustion Chamber Volume: 109 cc open chamber design
• Valve Configuration: 2.190-inch intake and 1.880-inch exhaust valves
• Springs: Performance-oriented 1.550-inch valve springs
• Material: Premium, lightweight aluminum construction
• Application: Specifically designed for Big Block Chevy engines (sold as a pair)

These AFR Magnum Street cylinder heads arrive fully assembled, making your engine build or upgrade process more efficient. The high-quality aluminum construction not only reduces overall engine weight but also provides excellent thermal management, crucial for consistent street performance. Experience a significant improvement in throttle response, torque, and overall engine efficiency, making your BBC more enjoyable to drive.

The AFR Magnum Street Advantage

AFR's 265cc CNC Magnum Street heads are engineered to provide the perfect balance of street manners and performance potential. The open chamber design and optimized porting ensure efficient combustion and excellent flow, making them an ideal choice for a wide range of Big Block Chevy street builds. Invest in AFR for proven performance and durability that will elevate your driving experience.