Section 17 (5.7L Engine (Service Information)): Removal: Cleaning
WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
Clean mating surfaces on cylinder head and manifold. Wash with solvent and blow dry with compressed air.