Manley Chrysler 440-1 Exhaust Valve Kit - 1.810in Head Dia. 5.369in O/A Length, 0.3415in Stem

Manley Performance is well-known for making strong engine components, especially for racing applications. This exhaust valve kit is designed for Chrysler 440-1 engines, featuring a 1.810-inch head diameter and a 5.369-inch overall length. These valves are crucial for ensuring your engine breathes efficiently, especially under demanding conditions.

Crafted from Manley's exclusive XH-428 material, these exhaust valves are built to handle high temperatures and significant stress. They've undergone rigorous fatigue testing, enduring up to 100 million cycles at 40,000 psi and 1400°F, which is a notable improvement over many competitor parts that fail much sooner. The valves also feature chrome stems and hard tips for added durability, along with swirl-polished under-head areas and fully machined faces to help improve airflow and combustion efficiency.

This kit is specifically engineered for high-temperature gasoline engines. If you're rebuilding the top end of your Chrysler 440-1 and need reliable exhaust valves that can withstand extreme use, these are a solid option.