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Thread: 454 mpg

  1. #1
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    454 mpg

    Anybody have an average mpg on the 454? I get from 12.5-13.5. Is that average?

  2. #2
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    leolkfrm's Avatar
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    thats about what i used to get on my 90 pu.....8 in an rv.....same if i was towing or not
    4 wheels move the body
    2 wheels move the soul
    B.W.A.I
    Snow is a lot like religion and a lot like sex....you never know when you are going to get it!....or how much you will get

  3. #3
    Senior Moderator chevychase's Avatar
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    That is great for a 454... All my 350,s about what they get.

  4. #4
    Senior Member gmctrucks's Avatar
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    Post a picture of that 454 and truck give us some spec's.
    http://i961.photobucket.com/albums/ae98/falken86/dadnew-1.jpg

  5. #5
    Senior Member MikeG's Avatar
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    That is great for a 454... All my 350,s about what they get.
    No ****!!!!!! I get 13 in town with my '96 5.7 (350)! Of course that's why I'm going to do a Cummins swap.
    '96 K1500 Ext. Cab Z71, 5.7L, Spectre Air Intake, 4L60E, 199K+, 13/18mpg
    My other car is Aircooled
    '69 Patina (0\_!_/0)

  6. #6
    Forum Moderator Boudin's Avatar
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    Man, that's great for any 454. I wish I got that good in my 350.

  7. #7
    Senior Member TexasAirCooler's Avatar
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    My '99 3/4 ton w/ 454 is getting 12+ mpg. Want to change the air intake system and exhaust next summer to try and get a little more.
    Terry

    '69 VW Bug
    '93 GMC Sierra 1500 X Cab now my Daughters ride
    '96 Chevy Suburban
    '99 GMC Sierra 2500 Crew Cab big block farm truck

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