- Sep 6, 2016
- Reaction score
- Podunkyville, OK
- Ram Year
- 2018 Ram 1500 Limited 4X4
- Hemi 5.7
So did, or at some point, the variable valve timing replace the multi displacement system? Ever since I’ve had my 2018, Ive always wondered why the Eco mode(whatever it is now) in these trucks doesn’t seem to really affect the louder Carven Progressive exhaust note on it like the MDS did so badly to the flow master knock off and custom dual muffler-back pipes on my 2008. That’s why I’ve always been really glad that I had the ability to easily run a tuner on my old truck and don’t have to on this one.The hemi was reworked in 2009 which added the eagle heads and VVT and possibly some other stuff (MDS was there since 2006). But after 2009 there was only one mechanical change to upgraded lifters somewhere around 2014 or 2016, can't remember.
I don’t know whether or not if you’ve been on the BITOG forums but that really talkative guy that’s on there; can’t remember his username but he’s the one that has the Maverick-like fighter pilot helmet as his avatar and he was the one telling me about the lifters being changed supposedly 4 to 5 times throughout the years.
So other than the heads, the lifters and whether or not there was a transition from the multi displacement system to the variable valve timing, what else is not the same?But after that date, the same hemi is used in 4th gens (built after that date) and classics, as well as 5th gens.
So your 4th gen 2018 Ram has the same hemi as my 5th gen 2019. But your 2008 hemi will be quite different.