Ferrea Chevrolet BB 1.9in 11/32in 5.425in 15 Deg S-Flo +.100 6000 Series Exhaust Valve - Set of 8

These Ferrea 6000 Series exhaust valves are made from a high-strength, heat-resistant alloy, specifically chosen for demanding engine builds. Each valve measures 1.9 inches across the head and has a 5.425-inch overall length, with a 11/32-inch stem diameter. This set is +.100 inch over standard size, designed for Chevrolet Big Block engines that have been bored out to accommodate larger valves, improving airflow and performance.

The S-Flo design features a specialized undercut on the stem and a unique swirl pattern on the face of the valve head. This isn't just for looks; it helps to improve airflow characteristics by reducing turbulence as the mixture enters the cylinder. The material used is known for its ability to withstand the high temperatures and pressures found in performance engines, helping to prevent warping or failure under stress. These valves are a solid option when you're rebuilding the top end of a performance Chevrolet Big Block and need components that can handle the heat and flow requirements.