Yep, time will tell how the 7.3 holds up, it has every chance to be a winner. Big inch low power, low rpm, low stress, few components... I do think some DOHC heads with TI-VCT and direct injection on the 6.2 would have made more power and better economy... but it would have been way more expensive to make. The 7.3 I have a feeling was largely designed to out the 6.8 in the RV industry, and because they need lots of sales to make up for the R&D, they offered it in the superduty... Speaking of... a v10 with the coyote bore and ti-vct style direct injection top end, I would have been happy with that too...yes I have had many diesel guys tell me that the emissions thing killed the diesel. I always just tell them how do you think I feel gas motors got it back in the early 70's LOL
… and just in case you haven't seen it yet but pushrods are back. 7.3 gasser is a small block, big cube, pushrod v-8. I saw the video a few times now and it looks like they have increased pushrod size to give it more durability. Brian has been a pushrod guy for a long time, he says some interesting things but you have to listen close. Only time will tell.
I don't know what it was about the windsors, but they all ran like garbage after 100-200k... I have 2 200k+ 4.6s and they both run great.