Ferrea Chevrolet SB 1.6in 7mm 5.55in 12 Deg Rad Groove +.600 Super Alloy Exhaust Valve - Set of 8

These Ferrea exhaust valves are made from a super alloy, a material chosen for its ability to handle the high temperatures and stresses found in performance engine builds. Each valve measures 1.6 inches across the head and features a 7mm stem, with an overall length of 5.55 inches. The +.600 dimension indicates these valves are intended for engines that have been modified, such as those with ported cylinder heads or upgraded camshafts, where additional valve lift is required.

The 12-degree radius groove on the valve stem is a detail that helps ensure a good seal with the valve guide and allows for proper lubrication. This specific design choice contributes to consistent performance and helps reduce wear over time. Ferrea is known for making well-built engine components, and this set of eight valves is designed for Chevrolet Small Block engines that are being rebuilt or upgraded for more demanding use.