2007 Chevrolet Silverado Engine Gasket Set - Valve Cover 6.6L Engine - Classic LT LBZ - Master Set - Contains all gaskets and seals required for the installation of fuel injectors guaranteed to replace your current 2007 Chevrolet Silverado Engine Gasket Set - Valve Cover 6.6L Engine - Classic LT LBZ - Master Set - Contains all gaskets and seals required for the installation of fuel injectors. 2007 Chevrolet Silverado Engine Gasket Set - Valve Cover comes new OEM 2007 Chevrolet Silverado Engine Gasket Set - Valve Cover aftermarket new 2007 Chevrolet Silverado Engine Gasket Set - Valve Cover of remanufactured 2007 Chevrolet Silverado Engine Gasket Set - Valve Cover 6.6L Engine - Classic LT LBZ - Master Set - Contains all gaskets and seals required for the installation of fuel injectors.