Manley Chevrolet Big Block Exhaust Valve Kit - 1.900in Head Dia. 5.522in O/A Length, 0.3415in Stem

This kit includes one Manley Street Series exhaust valve, designed for Chevrolet Big Block engines. It features a 1.900-inch head diameter, a 5.522-inch overall length, and a 0.3415-inch stem diameter. These valves are a solid option if you're looking to improve the performance of a stock or mildly modified street engine.

Crafted from high-quality stainless steel, these valves are built for durability and long life. The stems are chrome-plated and feature hard tips, adding extra wear resistance. The areas under the head are swirl polished, and the combustion faces are fully machined. This attention to detail helps improve airflow into the cylinder, contributing to better combustion efficiency.

Manley offers these valves in different shapes, including the Street Master (straight stem) and Street Flo designs, so you can pick the one that best suits your engine build.