HARD ANODIZE WATER JACKET BBC SBC

AFR (Airflow Research) cylinder heads are high-performance heads, often featuring 100% CNC ported intake, exhaust, and chambers. They are typically made from A356 aluminum castings and incorporate high-quality components. While specific details for MPN 4030 were not found, AFR heads are generally available for various engine displacements and RPM ranges, suitable for a wide array of applications from street to full race. Some AFR cylinder heads may carry CARB EO numbers, making them legal for older emissions-controlled vehicles. The brand also offers 'Enforcer' series, which provide budget-friendly options, sometimes with 'As-Cast' surfaces on intake/exhaust runners and combustion chambers, and can be purchased as 'No Parts' or fully assembled.