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Chevy 454

Discussion in 'Trucks and Trailers' started by Grass Happens, Jul 28, 2008.

  1. Grass Happens

    Grass Happens LawnSite Senior Member
    Messages: 682

    I'm looking hard at a 91 chev k2500 with the 454, and was wondering what the gas mileage difference was with a 350. I realize that unloaded it will be much worse then the 350, but what about loaded with a 12-14' open trailer or pushing snow? Its a very vary clean truck with 105,000 miles on it, but if the 350 is a more efficient motor, I'll hold off.
     
  2. LindblomRJ

    LindblomRJ LawnSite Silver Member
    Messages: 2,570

    I think those that run 454 don't really pay any attention to fuel consumption.

    I have a 3/4 with a 350... 11 in town with trailer. Better on the highway if I behave. I looked at a pickup with a 454 loved the power... But for what I am going the 350 is hard to beat.
     
  3. DBFlawn

    DBFlawn LawnSite Member
    Messages: 207

    We have a 1999 Chevy 3500 454 105,000 miles with a 12 steel flat bed and get in the ball park of about 10 mpg. So I would think that the 2500 would get a little better.

    Now I have never plowed snow before but if you get some wet snow I think you would deffinatly like the 454 better just for the extra power.
     
  4. JohnsonLawn

    JohnsonLawn LawnSite Senior Member
    Messages: 400

    I have a 1992 K3500 with a 454, with a stick and I get in about 7-8 mpg towing a loaded 14' open trailer and about 6mpg pushing snow. It will move a house, but wont pass a gas station.
     
  5. GravelyNut

    GravelyNut LawnSite Bronze Member
    Messages: 1,594

    Look for a newer one with the 8.1 (496). They do get better mileage and still will pull the house and outhouse.
     
  6. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Messages: 9,544

    The older 454s with TBI injection are a little piggy but the power is nice. A 454 or any big block can get good mileage just drive them right. Stomping a 454 to the floor isn't the fuel saving way.
     
  7. Accu-cut Lawn Care

    Accu-cut Lawn Care LawnSite Bronze Member
    Messages: 1,206

    If it has the 3 speed automatic tranny... RUN! It'll get about 6 to 8 mpg.
     
  8. Grass Happens

    Grass Happens LawnSite Senior Member
    Messages: 682

    well Like i said this thing is super clean, i haven't found one with the 5.7 around as nice as this. For most of my towing a 5.7 would suffice, but like i said this sucker is nice. no is the 4L80E, the overdrive TH-400. Which is actually the only problem, the reverse spring deal took a poop, which is why he is selling it so cheaply, as i would need to rebuild/replace the trans. but no rust, E range tires with 1500 miles on them, regular cab long bed. I just to want to go bankrupt fueling this thing, but if i could manage 10-12ish, it should do.
     
  9. SNAPPER MAN

    SNAPPER MAN LawnSite Silver Member
    Messages: 2,443

    My dad has a special edition 1990 SS454 and I tell you that thing will get 8mgp idling. But man that power is awsome.
     
  10. TandM

    TandM LawnSite Senior Member
    from south
    Messages: 772

    my 440 in my dodge gets about 8 when unloaded or loaded. It has a three speed in it. My buddy has a 454 and he gets about the same mileage as me when we take trips. Its a stump puller though.
     

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