Manley Chevrolet Small Block Exhaust Valve Kit - 1.500in Head Dia. 4.911in O/A Length, 0.3415in Stem

Manley Performance is well-known for making solid engine components, and their Street Series valves are a great example of that. If you're working on a stock or lightly modified Chevrolet Small Block engine and want to improve its breathing, this exhaust valve kit is a solid option. These valves are designed to handle the demands of street use, offering a good balance of performance and durability.

These exhaust valves are made from high-quality stainless steel, which means they'll hold up well over time. The stems are chromed and feature hard tips, adding extra wear resistance where it counts. The area under the head is swirl polished to help air move smoothly, and the combustion face is fully machined. This attention to detail helps improve airflow into the cylinder, which can make a noticeable difference in how your engine runs.

This kit includes exhaust valves with a 1.500-inch head diameter and a 4.911-inch overall length, featuring a 0.3415-inch stem. They are designed as a direct replacement for many Chevrolet Small Block applications, making installation straightforward if you're rebuilding your top end.