Manley Chrysler Top Fuel Exhaust Valve Kit - 2.000in Head Dia. 5.020in O/A Length, 0.3715in Stem

Manley Performance Products is well-known for making strong engine components, especially for racing applications. This Extreme Duty Series exhaust valve is a prime example, built to handle the intense demands of Top Fuel and Funny Car drag racing, as well as high-performance marine engines. If your build pushes the limits and needs a valve that can take extreme force and heat, this is the part you're looking for.

The key to this valve's toughness is its XH-432 XtremeAlloy material, specifically chosen for its ability to withstand extreme conditions. You'll also find chrome stems and hard tips, which add significant wear resistance and help ensure this valve lasts through demanding use. The under-head area is swirl polished, and the combustion face is fully machined. These details aren't just for show; they help improve airflow into the cylinder, contributing to better combustion efficiency and overall engine performance.

This kit includes one exhaust valve with a 2.000-inch head diameter and an overall length of 5.020 inches, featuring a 0.3715-inch stem. It's designed for specialized applications where durability and heat resistance are absolutely critical. When you're building an engine that needs to perform under extreme pressure, components like these from Manley are essential for reliability and power.