I am very skeptical. Others think it will be easily done. You can see it here:Is it possible to tune the Diesel engine for an additional 90hp output?
ISB, Duramax and the Powerstroke are all pushrod engines with complicated valve train arrangements.Obsolete how?
Doing a lot of reading and studying. Get this.Something can be obsolete and still be a good product.
It wasn't that long ago that a person would put 18,000 lbs of load behind a 6,000lbs truck with only 400 ft.lbs of torque. Yes it would slow down on the hills, but it would still pull the grade. So the potential is there, waiting to be unlocked.
Look up the numbers on the 5.9 Cummins from around 2004 or so.Doing a lot of reading and studying. Get this.
The Nissan Titan Cummins has more HP & Torque than Gen 1 LB7 & LLY Duramax, and same HP but only 50 Ftlb torque less than LBZ Duramax.
Translation, basically same power that was in 1 ton HD Chevy for many years not too long ago.