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Deleted member 9101
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The 6.2L is also lighter but fact is the 7.3L is only needed if you are maxxed out towing. For the OPs application, straight truck with a camper, no trailer, the 6.2L is a great choice.
Kind of like do you want an old Vette with a great handling 350? or an old Vette with an overweight 454 that handles like a pig.
Which is a better, more fun car to drive up the coast highway, a Shelby GT350 or a Shelby GT500.
Lol... The 6.2 and 7.3 weigh about the same and get similar fuel economy.
While I'm a 6.2 fan (I have one in my work truck) I'd take the 7.3 any day for an RV. The 6.2 will definitely get the job done... But it will do it noticably slower.
The 6.2 is also a more complicated motor with more parts to fail.