Ferrea GM VORTEC 38mm 5.97mm 105.5mm 20 Deg S-Flo +1mm Competition Plus Intake Valve - Set of 10

If you're rebuilding the top end of your GM Vortec engine and looking for improved airflow, these Ferrea Competition Plus intake valves are a solid option. They're designed to handle the demands of performance builds, helping your engine breathe easier when you're pushing it hard.

These valves feature a 38mm head diameter and a +1mm stem, which is a common upgrade for many Vortec applications to increase flow. The S-Flo design means the valve face has a specific angle to help improve airflow into the cylinder. Ferrea uses strong materials in their Competition Plus line, making these valves well-built for durability and consistent performance under stress. You get a set of 10, which is what you'll need for a typical V8 engine.

When installing these, remember they are a +1mm stem size, so ensure your valve guides are properly sized or reamed to accommodate them. This is a key detail for proper sealing and valve train geometry.