Ferrea Ford Zetec ZX3 33mm 6.03mm 25 Deg S-Flo +1mm Competition Plus Intake Valve - Set of 8

If you're rebuilding the top end of your Ford Zetec ZX3 engine, these Ferrea Competition Plus intake valves are a solid option. This set includes eight valves, each featuring a 33mm head diameter and a 6.03mm stem. They are designed as a +1mm oversized replacement, meaning they are slightly larger than stock to help improve airflow and sealing in the combustion chamber.

Ferrea is known for making well-built valvetrain components, and these Competition Plus valves are no exception. They are constructed from high-quality materials chosen for their strength and ability to withstand the heat and stress of engine operation. The S-Flo design is intended to promote better airflow into the cylinder, which can contribute to improved engine performance. The 25-degree seat angle is a common specification that works with many cylinder head designs.

When installing these valves, remember they are +1mm oversized. This means the valve seats in your cylinder head will need to be reamed or cut to the correct size to ensure a proper seal and fit. It's always a good idea to consult your engine's service manual or a trusted mechanic for the correct installation procedures.