How-To: 4th gen hemi cam installation


Junior Member
Nov 17, 2021
Reaction score
White, Ga.
Ram Year
Hemi 5.7
Hi, my name is Nick and I am pretty sure I am a new member of this club. I have a 2014 RamBox with the 5.7 Hemi. I suddenly noticed a tick that varied with the rpm of the engine. I also noted a sudden decline in fuel economy. My research is telling me it is camshaft and lifter time but I have not done anything to truly verify my hunch. I bought the truck used with somewhere around 70k miles two years ago. It now has 119k. I don't beat on the truck and change the oil when the dash tells me to.

I would like to commend the OP on the write up/walk through he made for this procedure. Very nice!

I do have one question, I am currently researching parts to do this repair. My goal is better part design/ longevity with stock function. It seems like everything aftermarket is calling for the MDS being deactivated. This requires a tuning device and more expense. Are there any better designed parts that will allow the use of the MDS?

Thank you!