Manley Chevrolet Small Block Exhaust Valve Kit - 1.560in Head Dia. 4.911in O/A Length, 0.3415in Stem

Manley Performance is well-known for making strong internal engine components, and their Street Series valves are a solid choice when you're looking to improve the performance of a stock or lightly modified street engine. This specific kit is for the exhaust side of your Chevrolet Small Block engine.

These valves are made from high-grade stainless steel, which means they'll hold up well over time. The stems are chromed and feature hard tips, adding to their durability and resistance to wear, especially in applications where the engine sees regular use. The areas under the head have been swirl polished, and the combustion faces are fully machined. This attention to detail helps improve airflow into the cylinder, which can make a difference in how efficiently your engine burns fuel.

This kit includes exhaust valves with a 1.560-inch head diameter, a 4.911-inch overall length, and a 0.3415-inch stem diameter. You can choose between the Street Master (straight stem) or Street Flo shapes to best suit your engine build.