Ferrea Chevrolet SB 1.6in 11/32in 4.96in 12 Deg S-Flo +.050 Super Alloy Exhaust Valve - Set of 8

These Ferrea exhaust valves are made from a Super Alloy material, chosen for its ability to withstand the high temperatures and stresses found in performance Chevrolet Small Block engines. Each valve measures 1.6 inches across the head and has a total length of 4.96 inches, with a 11/32 inch stem diameter. This set includes eight valves, ready for your engine rebuild.

The S-Flo design is a notable feature, intended to improve airflow into the cylinder. These particular valves are +.050 inches oversized, meaning they are designed to be used in applications where the valve seat has been machined to accept a larger valve. This is a common practice when rebuilding or modifying engines to increase performance. The 12-degree seat angle is also a specific design choice for optimal sealing and flow in certain cylinder head configurations.

When rebuilding a Chevrolet Small Block, using well-built valves like these from Ferrea is important for ensuring reliable performance and longevity. They are designed to handle the demands of performance builds, offering a solid option for those looking to maximize their engine's potential.