Ferrea Chevy BB 1.89in 3/8in 5.4in 0.225in 22 Deg Tulip Flo Super Alloy Exhaust Valve - Set of 8

If you're rebuilding the top end of your big block Chevy engine, especially for performance applications, you need valves that can handle the heat and stress. These Ferrea exhaust valves are built for that kind of work. They feature a 1.89-inch head diameter, a 5.4-inch overall length, and a 3/8-inch stem diameter, designed to fit specific big block Chevy cylinder heads.

What sets these valves apart is their Super Alloy construction. This material is chosen for its ability to withstand high temperatures and pressures found in performance engines, helping to prevent valve failure under demanding conditions. The Tulip Flo design with a 22-degree seat angle is intended to improve airflow into the cylinder, contributing to better engine performance. Each valve is precisely machined to ensure it seals properly and operates smoothly within the valve guide.

This set includes eight valves, enough for a complete V8 engine. When installing, pay close attention to valve guide sizing and ensure proper valve spring and retainer combinations are used to match the valve's weight and operating RPM. Ferrea is a well-known name in performance engine components, and these valves reflect their focus on durability and performance for serious engine builds.