Chevrolet PERFORMANCE COPO LS7 CNC Head Assembly

The high-revving horsepower of the COPO racing engines is enabled by the high-flow LS7 CNC cylinder head, which features a 12-degree valve angle for efficient airflow at high rpm. The head is fully CNC machined and the 356-T6 aluminum casting features 275cc (nominal) intake ports, 90cc exhaust ports and 70cc combustion chambers. There's also a thick, 5/8” deck for exceptional (nominal) strength. The assembled head includes:

• 2.205” titanium intake valves
• 1.615” sodium-filled exhaust valves
• Max-Life Beehive-type valve springs
• Valve retainers and locks
• Intake and exhaust stem seals
• Intake lash cap