Semi-hemispherical or not, it still puts out one horsepower per cubic inch in its truck-tuned form. I don't think any other large truck engine does that. Possibly Toyotas new 4.7 and Chevy's 4.8 come pretty close, though. I know 1 hp per ci is not a big deal for highly tuned 4 and 6 cylinders, but not many large V8's can do that and be tuned for truck use. The current hemi is about as close as you could get to the hemi of yore with today's strict emissions.

I thought the 8.1 was a competitor for the V10. The 6.0 is direct competition with the 5.4 and 5.7 in heavy duty trucks, since the 5.3 isn't offered. If the HO 6.0 was offered in 1/2 ton form, it would definately be a three-way shootout, and the 6.0 might even edge out the 5.6 and 5.7. Especially since it seems GM has fixed the CSK issue.