Ferrea Chevrolet SB 1.6in 5/16in 5.38in 0.29in 12 Deg +.400 Super Alloy Exhaust Valve - Set of 8

This set includes eight Ferrea Super Alloy exhaust valves, each measuring 1.6 inches in diameter with a 5/16 inch stem and a length of 5.38 inches. These valves are designed for Chevrolet small-block engines and feature a +.400 inch oversized head diameter and a 12-degree seat angle, with a .290 inch undercut stem for improved airflow.

Crafted from Ferrea's proprietary Super Alloy material, these exhaust valves are built to withstand the high temperatures and stresses found in performance engine builds. This material offers excellent resistance to heat and wear, making it a solid choice for engines that see demanding use. The precise machining and material selection contribute to reliable performance and longevity, ensuring your engine breathes efficiently.

When rebuilding or upgrading your Chevrolet small-block's top end, these valves are a key component for optimizing exhaust gas flow. Their specific dimensions and material properties are intended to work within the parameters of performance cylinder heads designed for these engines.