Mechanical Roller-Perfect for mild modifications, optimized fuel mileage and improved torque/hp. Good for heavy towing. COMP Cams always recommends checking piston to valve clearance whenever installing a Camshaft. Modern engine design dictates a compact combustion chamber and tight clearances. Tolerance stack or Installation errors can result in interference and failure. COMP recommends .080" intake and .120" exhaust minimum piston to valve clearance in most Applications.

This Part Fits:

Year	Make	Model	Submodel
2006-2016	Chevrolet	Express 2500	Base
2006	Chevrolet	Express 2500	LS
2006	Chevrolet	Express 2500	LT
2006-2016	Chevrolet	Express 3500	Base
2011-2016	Chevrolet	Express 3500	LS
2011-2016	Chevrolet	Express 3500	LT
2001-2005	Chevrolet	Silverado 2500 HD	Base
2015-2016	Chevrolet	Silverado 2500 HD	High Country
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2016	Chevrolet	Silverado 2500 HD	LT
2007-2016	Chevrolet	Silverado 2500 HD	LTZ
2004-2016	Chevrolet	Silverado 2500 HD	WT
2007	Chevrolet	Silverado 2500 HD Classic	LS
2007	Chevrolet	Silverado 2500 HD Classic	LT
2007	Chevrolet	Silverado 2500 HD Classic	WT
2001-2005	Chevrolet	Silverado 3500	Base
2001-2006	Chevrolet	Silverado 3500	LS
2001-2006	Chevrolet	Silverado 3500	LT
2004,2006	Chevrolet	Silverado 3500	WT
2007	Chevrolet	Silverado 3500 Classic	LS
2007	Chevrolet	Silverado 3500 Classic	LT
2007	Chevrolet	Silverado 3500 Classic	WT
2015-2016	Chevrolet	Silverado 3500 HD	High Country
2007-2016	Chevrolet	Silverado 3500 HD	LT
2007-2016	Chevrolet	Silverado 3500 HD	LTZ
2007-2016	Chevrolet	Silverado 3500 HD	WT
2006-2016	GMC	Savana 2500	Base
2006-2016	GMC	Savana 3500	Base
2011-2016	GMC	Savana 3500	LS
2011-2016	GMC	Savana 3500	LT
2002-2005,2015-2016	GMC	Sierra 2500 HD	Base
2011-2016	GMC	Sierra 2500 HD	Denali
2001-2002,2006	GMC	Sierra 2500 HD	SL
2001-2016	GMC	Sierra 2500 HD	SLE
2001-2016	GMC	Sierra 2500 HD	SLT
2003-2014	GMC	Sierra 2500 HD	WT
2007	GMC	Sierra 2500 HD Classic	SL
2007	GMC	Sierra 2500 HD Classic	SLE
2007	GMC	Sierra 2500 HD Classic	SLT
2007	GMC	Sierra 2500 HD Classic	WT
2002-2005	GMC	Sierra 3500	Base
2001-2002,2006	GMC	Sierra 3500	SL
2001-2006	GMC	Sierra 3500	SLE
2001-2006	GMC	Sierra 3500	SLT
2004-2006	GMC	Sierra 3500	WT
2007	GMC	Sierra 3500 Classic	SL
2007	GMC	Sierra 3500 Classic	SLE
2007	GMC	Sierra 3500 Classic	SLT
2007	GMC	Sierra 3500 Classic	WT
2015-2016	GMC	Sierra 3500 HD	Base
2011-2016	GMC	Sierra 3500 HD	Denali
2007-2016	GMC	Sierra 3500 HD	SLE
2007-2016	GMC	Sierra 3500 HD	SLT
2007-2014	GMC	Sierra 3500 HD	WT
2006	Hummer	H1	Alpha