And bringing back the Hemi will smooth the transition, if the Hurricane proves that it’s superior it will take over in the end. A big segment of truck buyers are inherently conservative. They want something that’s proven and something they understand, hence all the grousing when Ford pushed out the Ecoboost years ago. And the Ecoboost results are still not entirely clear, some of them hold up about as well as v8s (3.5), some die quickly (2.7, 1.0).
Keeping a lower-tech big-displacement v8 in the arsenal is not without precedent. GM still has the LSx (though its reputation is pretty tainted these days, first with cam/lifter issues, AFM, and now the 6.2 debacle). Ford created a whole new pushrod v8 (Godzilla) because they saw a market for it, and it’s doing well. Stellantis had a CEO that got far too swept up in “the new” on a rapid timescale, and the company (and he) paid the price. FORTUNATELY, the tooling and other production capability hadn’t been scrapped.