ClaySlayer
Bronze Member
At the end of the day when you make the same HP out of a smaller engine you are putting more stress on numerous parts in the engine. Sure they can handle it but the V8 can easily handle having mods done to it to increase it's HP while the ecoboost engines are pretty much topped out unless you are willing to reduce engine life. A modern engine should make 200k miles without needing any serious work. A 5.0 V8 should be able to be boosted to 500hp and still make that. I'm not so sure you could get 500hp out of a 3.5 V6 and expect it to make 200k doing everything a truck may do, like towing. Just my opinion. Of course I'm not sure if where engines are now is really needed.
It's all how you treat them. Bolt a blower into the valley of the 5.0 and subject it to a hard life of floggings and towing and I'm not sure the rods or pistons will make it 200k. The tuned EBs seem to be holding together very well. It's the funk from the PCV getting trapped in the intercooler and suddenly being ingested that seems to be killing them. And with a fairly safe tune you can gain 60hp and 80lb-ft at the wheels so roughly 75hp and 100lb-ft at the crank. But even in stock form it'll pull anything around that you could/should put behind a half ton. But I get what you're saying...boost the 5.0 and you're back to cubic inches wins. When I bought my current truck (3.5 EB) the Ford dealer had a 5.0 truck that had a blower installed by Roush and was rated at 590hp with a warranty. And if it weren't for needing to buy a tractor too that truck might be sitting in my garage. But I had to be a responsible adult that day and tell the kid in me to shut up! :laughing: