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02-28-2013, 01:23 AM | #1 |
Senior Member
Join Date: Jun 2010
Location: Illinois
Posts: 2,957
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What kind of mileage could I expect.
I know not to expect a whole lot of mpg's but here it is anyway. I am looking at swb 4x4 with a 305, 700r4 and not sure what gears. I am sure either 3.42's or 3.73's. This is factory suspension and factory size tires. The 305 is stock as is the whole truck with the exception of headers. I do have a 350 that runs well it might have a slightly bigger cam but it has a smooth idle. I would think about putting it in for a little more torque.
If I did anything to the truck suspension wise it would be a 4" lift and maybe 33's. Should I expect somewhere in the low to mid teens for mileage or is that asking too much. If it is going to be that bad then maybe I should think about a 5.3l. 4wd's and mileage don't go hand in hand but I would like to know what I am up against from the beginning. Not really comparing apples to apples hear but my 91 z71 short bed has a tbi 350 and 5-speed and gets between 20-22mpg with 3.42's.
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Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie |
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