Manley Chevrolet Small Block Exhaust Valve Kit - 1.600in Head Dia. 5.040in O/A Length, 0.3110in Stem

When you're rebuilding the top end of your Chevrolet small block engine, especially for racing applications under 8000 RPM, choosing the right valves is crucial. This Manley Race Series exhaust valve kit is built to handle the stress of bracket, drag, and oval track racing, ensuring your engine breathes right when it matters most.

These exhaust valves are made from XH-426 stainless steel, a well-built material that stands up to high temperatures and pressures. They feature chrome-plated stems and hard tips, which add extra durability and resist wear over time. The under-head area is swirl polished to help smooth airflow, and the combustion face is fully machined to improve how efficiently the engine burns fuel. If you're running an alcohol-based fuel, these are specifically recommended for exhaust valve use, offering reliable performance in those demanding conditions.

This kit includes exhaust valves with a 1.600-inch head diameter and a 5.040-inch overall length, featuring a 0.3110-inch stem diameter. They are designed to fit right into your Chevrolet small block cylinder heads, making them a solid option for your performance build.