Ferrea Chevrolet SB 1.6in 7mm 5.38in 0.29in 12 Deg Rad Grv +.400 Super Alloy Exhaust Valve- Set of 8

If you're rebuilding the top end of your Chevrolet Small Block engine, especially for performance applications, you'll want to pay attention to the exhaust valves. These Ferrea valves are made from a super alloy that can handle the heat and stress of an engine working hard. They're designed with a 1.6-inch head diameter and a 7mm stem, fitting many popular SB builds.

Ferrea uses a special super alloy for these valves, which is known for its strength and resistance to high temperatures. This is important for exhaust valves because they sit right in the path of hot combustion gases. The valves have a 12-degree radius groove and are .400 inches oversized on the stem, meaning they're intended for specific machine work during an engine rebuild. A set includes eight valves, enough for a standard V8 engine.