LS3 12-Degr Cylinder Heads Fully CNC Ported

The LS3 12-Degree Cylinder Heads Fully CNC Ported are designed for operators seeking enhanced performance and reliability from their GM LS-series engines. These cylinder heads are crucial for maximizing vehicle performance in tactical environments, where every detail matters for operational readiness.

Engineered with a 12-degree valve angle, these heads improve upon the standard factory geometry, optimizing thermal efficiency and airflow. The fully CNC ported design ensures precise tolerances, which is essential for maintaining consistent torque across the power band. Each head is assembled with 2.165-inch intake and 1.600-inch exhaust valves, supported by durable springs.

These aluminum cylinder heads provide a significant weight reduction compared to iron alternatives while enhancing heat dissipation. This feature is vital for preventing engine fatigue during prolonged use. Ideal for high-performance applications, these heads are compatible with GM LS-series engines, making them a valuable upgrade for enthusiasts and professionals alike.