the duramax is a V8 6.6lts twin turbo engine (diesel) which is found is the chevys. the other engines i belive they trying to introduce is the (may be same family) ones are being used in their new pick up trucks and trooper, 3.0 lts 4 cyls in line turbo intercooled. anyway go and visit: www.isuzu-tis.com you'll find more about this engines and pick up trucks.