I have read so many posts about what parts people are using to swap out cams in the 5.7 hemi with the 6.4L cams. Everything from parts to places to order, and there are many different vendors and places to do the work. My question is, can you use all the Mopar parts form a 6.4L to do the swap, cam, springs, retainers and cups. I am doing it in my 2009 RT 6 speed. You can order all the stuff from Allmopar.com or is there a reason to get different brand parts. Just a bit confused.