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4th Gen Ram Tech2009 - 2018 Rams and the 2019 Ram Classic: This section is for TECHNICAL discussions only, that involve the 2009 - 2018 Rams and the 2019 Ram Classic. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
"EZA" was the first 5.7L Hemi
"EZB" was the first 5.7L Hemi with MDS
"EZC" is the new 2nd gen 5.7L VVT without MDS
"EZD" is the new 2nd gen 5.7L VVT with MDS
"EZE" is the HEV 5.7 that was in the Durango/Aspen
"EZH" is a revised version of the 5.7L VVT MDS that replaced "EZD" fall of 2008
my 2009 build sheet says this "EZD 5.7L V8 HEMI MDS VVT Engine", (truck was built dec 2008). They probably had some leftover engines for the early gen 4 builds.