Manley Ford 429 Exhaust Valve Kit - 1.760in Head Dia. 5.067in O/A Length, 0.3415in Stem

Manley Performance is well-known for making strong internal engine components, and their Severe Duty? Exhaust Valves are a prime example. If you're working on a Ford 429 engine and need to replace your exhaust valves, this kit is built to handle demanding conditions. These valves are specifically designed for high-temperature gasoline engines, meaning they can stand up to the heat and stress of regular operation.

What really sets these valves apart is the material: XH-428 for the exhaust valves. Manley states this material has nearly double the ultimate tensile strength at 1500?F compared to other common exhaust valve materials. They've also put these valves through rigorous fatigue testing, enduring up to 100 million cycles at high stress and temperature, which is significantly more than many competitors. The valves also feature chrome stems and hard tips for added durability, and the under-head areas are swirl-polished to help improve airflow into the cylinder.

This kit includes exhaust valves with a 1.760-inch head diameter and a 5.067-inch overall length, with a 0.3415-inch stem diameter. For the best results, always refer to the manufacturer's installation instructions when rebuilding your engine.