I’ve got a ‘13 Ram 1500 with a 5.7 and a ticking lifter. I think it’s beyond the “they all do that” and it’s for resale so I’m going to fix it. Hoping to be able to just replace a bad lifter but expecting the cam to be damaged as well. I know I read on here where a guy did a cam change on a 5.7 in a 2500 and used a 6.4 SRT cam and it worked fine with the stock tune etc. Just wondering if anyone has any input or if the member who did it will chime in (I can’t remember who it was lol)