Manley Performance Sport Compact valves utilize our exceptional Race Series alloy and are manufactured to the highest quality standards.
Designed to outperform and outflow all others in the most severe environments, Manley stainless valves feature durable chrome stems, swirl polished underheads, fully hardened tips, completely machined combustion faces, closely controlled margin heights, and exact stem to seat concentricity to render a finished product that is unsurpassed.
Typically built with our original Pro-Flo design, Manley intake valves reduce the stem diameter in the fillet area for increased airflow and less valve weight.
In certain specific applications, our Extreme Duty exhaust material is offered.
Our Extremealloy alloy provides more hot hardness and high temperature strength than competitors' offerings.
This alloy is ideal for extremely high boosted applications where exhaust gas temperatures reach seemingly unthinkable levels.
Manley stainless valves are suitable for applications ranging from mild street performers to 1000+ horsepower race cars competing at the drag strip or drifting events.
