COMP Cams Sportsman Valves are available in a variety of materials, diameters and stem lengths for street and competition engines. The stainless steel valves are made from 21-4N forged steel alloy with 50 HRC minimum hard tips (eliminating lash caps); these valves deliver tremendous performance and durability. The hard chrome-plated 11/32" stems utilize proprietary oil retention surfacing. For extremely high revving LS applications, COMP® engineers developed titanium valves. Weighing 35% less than stainless steel, titanium valves are a must for race applications where valve float is not an option. For high temperature and high boost applications, valves constructed from Inconel superalloy are also available. PartNumber : cca6049-8 Description : Sportsman Stainless Steel Street Exhaust Valves; 8 Pieces Title : 6049-8 SS Valves, LS1 EXH 1.60"4.930" W/.170"Tip Lock Groove : Single Overall Length : 4.930" Head Diameter : 1.600" Size : 8mm California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Engine Family : GM Gen III LS1/LS2/LS6 Head Diameter : 1.6 Material : Stainless Steel Number of Grooves : Single Overall Length : 4.93 Valve Position : Exhaust Valve Series : Sportsman Valve Stem Outer Diameter : 8 2004-2005 Cadillac CTS V V8.-cc Engine Components::Valves 1998-2002 Chevrolet Camaro Z28 V8.-cc Engine Components::Valves 1998-2002 Chevrolet Camaro Z28 SS V8.-cc Engine Components::Valves 2003 Chevrolet Corvette 50th Anniversary Edition V8.-cc Engine Components::Valves 2003 Chevrolet Corvette 50th Anniversary Edition Pace Car V8.-cc Engine Components::Valves 1997-2004 Chevrolet Corvette Base V8.-cc Engine Components::Valves 1998 Chevrolet Corvette Indianapolis 500 Pace Car V8.-cc Engine Components::Valves 2001-2004 Chevrolet Corvette Z06 V8.-cc Engine Components::Valves 1998-2002 Pontiac Firebird Formula V8.-cc Engine Components::Valves 1998-2002 Pontiac Firebird Trans Am V8.-cc Engine Components::Valves 2004 Pontiac GTO Base V8.-cc Engine Components::Valves