Manley Stainless Steel Intake Valve Head Stem

Manley stainless steel intake valves are precision-engineered engine valves for street performance, racing, and engine rebuild applications. Often called performance intake valves or engine intake valves, they control the flow of the air and fuel charge into the combustion chamber, and they are built to hold up to heat and stress.

Key Features:

• Stainless steel construction: Intake valves are commonly made from NK-842 stainless steel for strength and heat resistance.
• Swirl-polished, fully machined heads: The finish and machining support smooth airflow and consistent quality.
• Chrome-plated stems: The chrome stems help reduce wear and improve durability in the valve guide.
• Hardened valve tips: The hard tips resist wear from rocker arm or lifter contact.
• Airflow-focused design: Many Manley intake valves use the Pro-Flo design, which reduces stem diameter in the fillet area for better airflow and less valve weight.

Manley is a long-established American valvetrain manufacturer. Its valves are offered in several product lines, from budget performance replacement to severe-duty and race-oriented designs. Together they cover a wide range of engines and power levels. Choose the specific head diameter, stem diameter, and length to suit your engine build.