7.3L with heads and cam upgrade

gimmie11s

Don’t be an idiot
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Interesting. I didnt think a lot would be gained due to the amazing head design from factory. The parts only, with minimal tuning changes yielded a 13 hp gain on his first pull. After TONS of runs and tuning changes they ended at 457 whp, which represents a 49 hp gain.

457whp out of a heads/cam swapped 7.3l motor is, well, ... I guess I'd be pissed.

Sure does sound good though!..... just like an LS powered GM.
 

HISSMAN

The Great Bearded One
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When you compare it to the LS7 hp, it is underwelming, but the torque is really nice! I guess that is the trade-off the the stoke and cylinder differences. This would be a hell of an engine if it was offered in a factory hotrod.
 

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