COMP Cams' part number 6072-8, Stainless Intake Valves for GM LS3 w/ 2.165" Head, 4.894" Length. These valves are performance direct replacements for the factory LS3 intake valves. The back cut near the valve's fillet increases flow which increases power and torque. HD stainless construction holds up to extreme engine conditions. Also available individually under part number 6072-1.