Manley Stainless Steel Performance Intake Valve Head

Manley Stainless Steel Performance Intake Valves are engine intake valves for replacement builds and mild street performance. They are designed to give strong, durable, free-flowing performance in engine rebuilds and upgrades. Each valve is machined from premium stainless steel and made to handle the pressure, heat and cam profiles of a performance-oriented engine.

Key Features:

• Stainless steel construction: Performance Series intake valves are made from NK-840 stainless steel for strength and heat resistance.
• Chrome stems: Chrome-plated stems add durability and help the valve run smoothly in the guide.
• Hardened tips: Hard valve tips resist wear from the rocker arm or lifter contact.
• Fully machined and swirl polished: A polished, precisely machined finish supports consistent quality and airflow.
• Back-cut design: Back-cutting helps airflow and supports horsepower.
• Length options: Offered in stock lengths and in a longer .100 in. length for street performance builds.

Manley has made performance valves for decades. The Performance Series is the economical choice in its valve lineup for stock replacement and mild street use. For high-RPM or heavy-duty race engines, Manley offers its Race and Severe Duty series. Choose the specific valve for your engine from the options listed on this page.