Manley Chevrolet Big Block Exhaust Valve Kit - 1.880in Head Dia. 5.454in O/A Length, 0.3715in Stem

Manley Performance Products' Extreme Duty Series exhaust valves are built for the toughest Chevrolet Big Block applications. If you're working on a Top Fuel or Funny Car drag racing engine, a high-performance marine Big Block Chevy, or a restricted carburetor circle track engine, these valves are designed to handle extreme force and heat. They are a solid option when you need components that can stand up to serious punishment and deliver consistent performance under pressure.

The heart of these valves is Manley's XH-432 XtremeAlloy material, chosen specifically for its exceptional resistance to heat and stress in demanding environments. To further enhance their durability and longevity, these valves feature chrome stems and hard tips, which greatly improve wear resistance where it matters most. You'll also find swirl polished underhead areas and fully machined combustion faces. This attention to detail in the machining helps improve airflow into the cylinder and can contribute to more efficient combustion, making the most of your engine's potential.

This kit includes the exhaust valves, ready for installation in your Big Block Chevy build. When working with high-performance engine components like these, it's always a good idea to refer to the manufacturer's installation instructions to ensure proper seating and valve train setup. These valves are a significant upgrade for any engine that pushes the limits.