Ferrea Chevrolet SB 1.625in 11/32in 5.56in 12 Deg S-Flo +.600 Super Alloy Exhaust Valve - Set of 8

Ferrea Chevrolet SB Super Alloy Exhaust Valves are a set of eight designed for small-block Chevy engines. These valves feature a 1.625-inch head diameter and a 11/32-inch stem with a 5.56-inch overall length, plus a 12-degree seat angle. They are built with a Super Alloy material, which is known for its strength and resistance to high temperatures, making them a solid choice for performance builds where exhaust temperatures can get quite high.

The S-Flo design is a notable feature, indicating a specific flow characteristic that can help improve cylinder head performance. These valves are also +.600 inches longer than standard, which is important to consider for valve train geometry and piston-to-valve clearance. The Super Alloy construction means they can handle the stress and heat of demanding engine operation, offering improved durability over lesser materials in high-performance applications.

When rebuilding or upgrading your small-block Chevy's top end, selecting the right valves is crucial for both performance and longevity. These Ferrea valves are a well-built option for those looking to optimize their engine's breathing and withstand the rigors of performance use.