I just started to read the 12/07 issue of "DIESEL POWER" (yhea, I got the subscription as a gift) and in it, there is a hop up article for 6. 0 P/S folks. It seems that when you hammer a 6. 0, it looses coolant. The fix is a race engine basic- to install head studs. I'll just say that the article begins with the cab already in the air 
I dunno, if you flip a few pages there's a kick butt 12V Cummins that look as if it was lifted out of a FedEx truck- untouched- grime and all putting down big numbers.

I dunno, if you flip a few pages there's a kick butt 12V Cummins that look as if it was lifted out of a FedEx truck- untouched- grime and all putting down big numbers.