6x6 Tech

[93hummer]

The only prob with big tires, big block and a heavy rig is the mileage will be horrific. Mine gets 11 mpg with 42's. 94-95 350 gasser hummers get 8-9 with stock tires, I think if I had a big block gasser with 42's it would be more like 5-6 mpg. So who cares right? Well offroading it means you had better be packin some extra fuel cans, and at 5-6 mpg, you had better have quite a few of them or make sure your trips offroad are very short and close to gas stations. There used to be a company called Offroad America that did 502 Hummer conversions back in the day before GM took over the brand and the Duramax became all the rage, a lot of guys arre still doing duramax swaps today. They did a lot of 502 Chevy crate engine conversions and every pic I saw they had 4-5 jerry cans on the back, and they offered fenderwell fuel tanks and auxilary tanks behind the rear bumper. I didn't realize why until I started thinking about it later.... Don't get me wrong, I love big block chevy's but I would never run one in an offroad rig for the single reason of fuel consumption offroad. on the road is a different story, you can usually find gas easier than diesel at most stations. my rig has a 25 gallon tank, and at times it is barely enough for some of the longer trails.