Ferrea Chevrolet LS1 1.625in 5.015in 24 Deg Tulip S-Flo Rad Grv +.100 Hollow Exhaust Valve- Set of 8

If you're rebuilding the top end of your Chevrolet LS1 engine, these Ferrea S-Flo hollow exhaust valves are a solid choice. They're built for performance applications where improved airflow and durability are key. The S-Flo design helps move more air into the cylinder, and the hollow stem construction reduces weight for better valve train stability at higher RPMs.

These valves measure 1.625 inches in diameter and have a length of 5.015 inches, with a +.100 inch oversize to help seal worn valve seats. The 24-degree tulip head shape is optimized for flow into the combustion chamber, and the hardened exhaust seat face is ready for the demands of performance engines. Ferrea is known for well-built valvetrain components, and these valves are a good example of their attention to detail for LS1 builds.

When installing these valves, remember they are a specific fit for the LS1 engine. Ensure your valve guides and seats are in good condition to get the most out of these performance valves. A proper valve job and careful installation will ensure they perform as intended.