Ferrea Chevrolet SB 1.625in 11/32in 5.46in 12 Deg S-Flo +.500 Super Alloy Exhaust Valve - Set of 8

These are Ferrea Super Alloy exhaust valves for Chevrolet Small Block engines. This set includes eight valves, each featuring a 1.625-inch head diameter and a 5.46-inch overall length. They are designed with a 12-degree S-Flo profile and are +.500 inches longer than stock, intended for specific performance builds where increased valve lift or different valvetrain geometry is required.

The Super Alloy material used in these valves is chosen for its ability to withstand the high temperatures and stresses found in performance exhaust applications. This well-built construction helps ensure consistent performance and durability, especially in engines that see frequent high-RPM operation or are subjected to aggressive tuning. The S-Flo design is intended to improve airflow characteristics over the valve head.

When rebuilding or modifying a Chevrolet Small Block, especially for performance use, selecting the right valvetrain components is crucial. These Ferrea valves are a solid option for builders looking for robust exhaust valves that can handle demanding conditions. Always confirm that the +.500 length is compatible with your specific cylinder head and valvetrain setup before installation.