The 5.9s have been at or the top for a long time. Now the playing field is going to bring them to dominate again with the Indy head for the Cummins. Go from a 125 CFM head to a 300 CFM Indy head...... We'll be seeing mods done to the bottom end of the Cummins engine finally lol.
it's true the cummins have been the fastest diesel truck on the track for years, but the duramax market is catching up.
there's a guy runnin around goes by Demitry, i dont know his last name.
He's got a red 4-door, 2500 dirty max, that last year at Rocky Mountain Raceway broke 9.8 in the qrtr, and it's his daily driver.
There was a dyno competition held in utah at a place called INDUSTRIAL INJECTION SERVICE, and he dyno'd 1400hp, and i think it was dang near 2000lbs of tq!!
it is increadible what these things will put down with just a few minor bolt on's
i mean i've got a 07 duramax, with the LBZ motor, 6 speed allison trann's, and only have a few bolt on's and i dyno'd 520hp, 784tq.
THE POPE- i can't wait for that indy head, i got guys that are chompin at the bit for one.. there's another company out there though called Hamilton cams, there in texas, there doing there own 12valve cummins heads and have got some amazing results so far... but they've had bottom end parts for the ford , chevy & dodge for awhile now.. at least 7 years. carrillo rods, arp hardware, girdles, forged pistons... it's alot of fun! everybody should own a diesel in my mind!