6.7 is a winner for sure. I have duramax in a few but my buddies 6.7 makes me want a Ford for the first time in a long time. Last ones I had were 7.3's in a couple F350 utility trucks close 15 years ago. Still have a 7.3 navstar in an international 4400. Has 490,000 on it. Smokes like hell on start up but runs like a scalded dog.
Big V8 gassers, I have an 8.1l in a GMC 6500 with a 6spd zf trans. Bitch pulls like a locomotive. Gets gallons to the mile though.
Last edited by jackmountain; 02/13/20.
