Ferrea Chevrolet BB 1.88in 3/8in 5.4in 15 Deg S-Flo +.050 Competition Plus Exhaust Valve - Set of 8

If you're rebuilding the top end of a Chevrolet Big Block engine, these Ferrea Competition Plus exhaust valves are a solid choice. They're designed with a 1.88-inch head diameter and a 3/8-inch stem, measuring 5.4 inches in overall length. This specific set is +.050 inches larger than stock, which can help improve airflow when matched with porting and other modifications.

Ferrea builds these valves from high-grade steel, heat-treated for durability under demanding engine conditions. The S-Flo design features a specialized undercut on the stem and a unique swirl pattern on the valve face. This helps to improve airflow into the cylinder and also aids in keeping the valve face cleaner by swirling the incoming air-fuel mixture. This attention to detail in their construction means they're well-built to handle the stresses of performance applications.

This set includes eight exhaust valves, enough for a complete V8 engine. Remember to check your specific engine's requirements to ensure these valves are the correct size for your application, especially considering the +.050 sizing.