COMP Cams offers complete component-matched valve train kits that deliver unbeatable performance, durability and ease of installation. All cam kits are fully tested and manufactured to the strictest standards. Each kit’s components were specifically chosen as the best performance match for that particular camshaft so that you can reap the benefits of a perfectly matched “Power Engineered System.” *K-Kit - Complete Kit Includes* * Camshaft * Lifters * Valve Springs * Retainers * Valve Locks * Valve Stem Seals * Timing Chain Set * Assembly Lube * Decals * Instructions PartNumber : ccaK54-448-11 Description : Complete Kit; Includes Xtreme XE-R Camshaft Title : K54-448-11 CamShaft Kit, LS1 XER287HR-12 Intake Duration : 287 RPM Range : 2800-7200 Intake Duration @ .050 in. : 238 Exhaust Duration @ .050 in. : 240 Intake Valve Lift(in) : 0.605 Usage : Street/Performance Exhaust Duration : 289 Exhaust Valve Lift(in) : 0.609 Lifter Type : Hydraulic Roller Advertised Exhaust Duration : 289 Advertised Intake Duration : 287 Basic Operating RPM Range : 2,800-7200 California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Cam Type : Hydraulic Roller Exhaust Duration at .050 inch Lift : 240 Exhaust Valve Lift : 0.609 Gaskets Included : No Intake Duration at .050 Inch Lift : 238 Intake Valve Lift : 0.605 Kit Type : K-Kit - Complete Kit Lifter Style : Hydraulic Roller Lifters Included : Yes Assembly Lubricant Included : No Camshaft Material : Billet Steel Lobe Separation : 112 Valve Springs Included : Yes 2004-2005 Cadillac CTS V V8.-cc Engine Components::Camshafts 2006 Cadillac CTS V V8.5967cc Engine Components::Camshafts 1998-2002 Chevrolet Camaro Z28 V8.-cc Engine Components::Camshafts 1998-2002 Chevrolet Camaro Z28 SS V8.-cc Engine Components::Camshafts 2003 Chevrolet Corvette 50th Anniversary Edition V8.-cc Engine Components::Camshafts 2003 Chevrolet Corvette 50th Anniversary Edition Pace Car V8.-cc Engine Components::Camshafts 1997-2005 Chevrolet Corvette Base V8.-cc Engine Components::Camshafts 2006 Chevrolet Corvette Base V8.5967cc Engine Components::Camshafts 1998 Chevrolet Corvette Indianapolis 500 Pace Car V8.-cc Engine Components::Camshafts 2001-2004 Chevrolet Corvette Z06 V8.-cc Engine Components::Camshafts 2006 Chevrolet Impala SS V8.5328cc Engine Components::Camshafts 2006 Chevrolet Monte Carlo SS V8.5328cc Engine Components::Camshafts 2005-2006 Chevrolet SSR Base V8.-cc Engine Components::Camshafts 2005-2006 Chevrolet SSR Base V8.5967cc Engine Components::Camshafts 2006 Chevrolet Trailblazer SS V8.5967cc Engine Components::Camshafts 1998-2002 Pontiac Firebird Formula V8.-cc Engine Components::Camshafts 1998-2002 Pontiac Firebird Trans Am V8.-cc Engine Components::Camshafts 2005-2006 Pontiac Grand Prix GXP V8.5328cc Engine Components::Camshafts 2004 Pontiac GTO Base V8.-cc Engine Components::Camshafts 2005-2006 Pontiac GTO Base V8.5967cc Engine Components::Camshafts