Manley Chevrolet Small Block Exhaust Valve Kit - 1.600in Head Dia. 5.365in O/A Length, 0.3415in Stem

This kit gives you a set of Manley Extreme Duty Series exhaust valves, designed for serious performance applications. Each valve features a 1.600-inch head diameter, a 5.365-inch overall length, and a 0.3415-inch stem diameter. These are built for engines that see extreme force and heat, like those in Top Fuel dragsters, Funny Cars, and high-performance marine applications, as well as restricted carburetor circle track racing.

The core of these valves is Manley's XH-432 XtremeAlloy material, chosen for its exceptional heat and force resistance. To ensure they hold up under tough conditions, they come with chrome stems and hard tips, which significantly boosts their longevity and wear resistance. You'll also find swirl polished areas under the head and fully machined combustion faces. This design work helps improve airflow into the cylinder and contributes to more efficient combustion, making your engine perform better.

If you're building a high-output Chevrolet small block or need valves that can handle extreme stress and heat, this Manley kit is a solid option. They are made to last and perform in specialized, demanding environments.