Ford Racing 302/351W Z-Head Aluminum 63CC w/7mm Valves

If you're building a high-performance 302 or 351W engine, these Ford Racing Z-Head aluminum cylinder heads are a solid choice. They are cast from prime A356 T6 aluminum, which keeps the weight down compared to iron heads while offering excellent strength for demanding applications. These heads are designed with high-flow ports and feature 20-degree inline valves, contributing to better airflow and combustion efficiency. This particular set has 63cc CNC-machined combustion chambers and 7mm valves, making them suitable for a wide range of Ford, Mercury, and Lincoln vehicles from the 1970s through the 1990s, including popular models like the Ford Bronco and various E-Series vans.

The Z-Heads come with manganese-bronze valve guides and steel alloy intake and exhaust valve seats already installed, saving you some labor. The exhaust ports are raised, which means you'll likely need custom headers to match the port exit. They also feature a competition valve job and bowl blending from the factory, designed to maximize airflow. While these heads are built for performance, remember that they are not CARB approved and cannot be shipped to California. They are made in the USA, reflecting Ford Racing's commitment to quality performance parts.

When installing these heads, be aware that custom headers are usually required due to the raised exhaust port exit. It's also recommended to consult the manufacturer's installation instructions for details on the competition valve job and bowl blending, as these are performance-oriented features that may require specific tuning or setup for optimal results on your specific engine build.