Ok im trying to figure out where i wanna go with this build. Right now the body is sitting on the frame-not bolted back down yet tho, and i was thinking about rebuilding the 454 to put back in there. But the gas mileage would really suck-250 miles out of 40 gallons of gas So im thinking of pulling the body back off and boxing the frame in, then putting a diesel in it. But what diesel should i use- i would like to go with a cummins but thats alot of money. And if i go with the 6.2 they dont make much power, and with 5.13 gears and a 400 trans i would be pulling alot of rpms- what kind of mileage would i get out of that combo? Or i could just start saving for a newer diesel truck-probably have 2 take out a loan to get one- then the burban project would pretty much stops cause of lack of funds. brad So kind of a big decision and i figured i would get your opinions before i decide.