Manley Chevrolet Small Block Exhaust Valve Kit - 1.500in Head Dia. 5.065in O/A Length, 0.3415in Stem

If you're rebuilding the top end of your Chevrolet small block engine, especially for racing applications under 8000 RPM, these Manley Race Series exhaust valves are a solid option. They're built from high-quality stainless steel, which is crucial for handling the heat and stress inside the combustion chamber. The exhaust valves, specifically, are recommended for alcohol-fueled engines, offering reliable performance when you need it most.

Manley has put some thought into the details here. The stems are chromed for better wear resistance, and the under-head areas are swirl-polished to help smooth out airflow into the cylinder. The combustion faces are also fully machined, which can contribute to better combustion efficiency. You can choose between a straight stem (Race Master) or a Race Flo shape, depending on the specific needs of your engine build.

This kit includes the exhaust valves you'll need for your rebuild. Remember to check the manufacturer's installation instructions for proper seating and valve guide compatibility.