HotRodDave is the expert on here for the 4.7.
He will also tell you that it is very easy to warp the heads on the 4.7 and if you have to replace a head gasket, replace the timing chain set and adjusters.
Craig

2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado