Thor Forums

[Luke D]

Originally Posted by Chance

That much engine (7.3L) is not “needed” for smaller motorhomes, but it would probably cost Ford more to manufacture a smaller version given that additional fuel economy would be minor; particularly in light of how few E-350 and E-450 are sold annually.



An inline 6-cylinder version with 5.5L would be great for E-350 but I’m sure it would be cost prohibitive; not to mention most RV buyers would prefer the greater power of the V8.



For what it’s worth, Ford makes an “Economy” version of 7.3L V8 for E-Series but it seems to me that only commercial fleets are using it. I have not seen any data on how “economical” it is compared to standard 7.3L V8.

Acree Air here in Tampa using the V8 E series on their repair trucks. Never thought to ask. I’ll ask next time they do their 6 mo. Maintenance.