Manley Chevrolet 409 Exhaust Valve Kit - 1.750in Head Dia. 5.105in O/A Length, 0.3715in Stem

This kit gives you the exhaust valves for your Chevrolet 409 engine build. These are the Race Series valves from Manley, built for engines that see a lot of action, like those in bracket, drag, or oval track racing, especially if you're running up to around 8000 RPM. They're made from stainless steel, which is a solid choice for handling the heat and stress inside an engine.

You'll notice these valves have chrome-plated stems and hard tips, adding extra durability and wear resistance right where it counts. The under-head area is swirl-polished and the combustion face is machined to help air move more freely and improve how efficiently the engine burns fuel. Manley offers different shapes, like the Race Master straight stem or the Race Flo, so you can pick what works best for your specific engine setup. They're also a recommended exhaust valve choice if you're running alcohol-based fuels, which can be pretty demanding on engine components.