Plenty of older hemis on youtube complaining about ticking as well. Many of these people saying it is a lubrication problem. I am not an expert on this subject but more oil pressure isn't going to hurt, especially at idle. Hellcat pumps put out more oil pressure than the 5.7, I am sure they have different cam / lifters too but haven't seen any people talking about hellcats ticking or wiping cams out. They also produce more heat. Just my