Hmmm, can't comment on weight but the 5.3 Vortec is a pretty compact engine 28 inches long to the Bell housing, 28 inches high from oil pan to top cover and 24 inches wide. The Ford 5.0 Coyote is 26 long, 27 high and 28 wide.
Dammed if I can find dimensions for the Ecoboost but looking at the packaging it wont be much smaller than that after allowing for turbos and associated piping.
But you are right, packaging is more than just dimensions and the extra work might not justify the price penalty
Don't get me started on payloads versus towing weights, the number of 1/2 tons that can't carry more than 1 passenger when towing at full load continues to amaze me.
Dammed if I can find dimensions for the Ecoboost but looking at the packaging it wont be much smaller than that after allowing for turbos and associated piping.
But you are right, packaging is more than just dimensions and the extra work might not justify the price penalty
Don't get me started on payloads versus towing weights, the number of 1/2 tons that can't carry more than 1 passenger when towing at full load continues to amaze me.