Ferrea Chevrolet BB 1.89in 3/8in 5.425in 15 Deg S-Flo +.100 6000 Series Exhaust Valve - Set of 8

If you're rebuilding the top end of your Chevrolet big-block engine, these Ferrea 6000 Series exhaust valves are a solid option. This set includes eight valves, each measuring 1.89 inches in head diameter and designed to be +.100 inches oversize. They feature a 3/8-inch stem and a length of 5.425 inches, with a 15-degree S-Flo design to help improve airflow.

Ferrea is known for making well-built valvetrain components, and these valves are no exception. They are constructed from high-quality steel, chosen for its durability under the heat and stress of engine operation. The S-Flo design is a notable feature, intended to reduce valve float and improve gas flow by creating a more aerodynamic path for the air-fuel mixture and exhaust gases. This can contribute to more efficient combustion and better overall engine performance.

When installing these valves, ensure you have the correct valve guides and seats to match the +.100 oversize dimension. Proper installation is key to achieving the performance benefits these valves offer and ensuring the longevity of your engine rebuild.